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Stock Photos - VISUAL AID (2,255 results)

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Stock Photo #4389-2130, NASA Develops World's Highest Resolution Visualization System
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NASA Develops World's Highest Resolution Visualization System
Stock Photo #1598R-140288, Male lecturer sitting at a desk in a classroom
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Male lecturer sitting at a desk in a classroom
Stock Photo #1566-1004394, A teacher guides a blind child´s hands to form the letter ´L´ by touch using two sticks in a special needs pre-Braille writing class at the Blind Children´s Learning Center in Santa Ana, CA
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A teacher guides a blind child´s hands to form the letter ´L´ by touch using two sticks in a special needs pre-Braille writin...
A teacher guides a blind child´s hands to form the letter ´L´ by touch using two sticks in a special needs pre-Braille writing class at the Blind Children´s Learning Center in Santa Ana, CA
Stock Photo #1598R-50268, Young man leaning over computer monitor, wearing protective gear
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Young man leaning over computer monitor, wearing protective gear
Stock Photo #1598R-62945, Doctor filling in gynaecological chart, close-up, mid section, elevated view
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Doctor filling in gynaecological chart, close-up, mid section, elevated view
Stock Photo #1598R-126971, Smashed Computer Monitor
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Smashed Computer Monitor
Stock Photo #1598R-178325, Two young men and a young woman wearing lab coats in a classroom
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Two young men and a young woman wearing lab coats in a classroom
Stock Photo #1598R-193124, Online Order Form on the World Wide Web
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Online Order Form on the World Wide Web
Stock Photo #1598R-105155, Close-up of two businessmen talking to each other in an office
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Close-up of two businessmen talking to each other in an office
Stock Photo #1598R-79499, Please Wait Message on a Computer Monitor
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Please Wait Message on a Computer Monitor
Stock Photo #1598R-193801, Binary Code and Tiger Stripes on a Woman's Eye
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Binary Code and Tiger Stripes on a Woman's Eye
Stock Photo #1598R-89576, Computer Monitor with Pie Chart
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Computer Monitor with Pie Chart
Stock Photo #4170R-5798, Portrait of a man standing with his arms crossed at a railroad platform
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Portrait of a man standing with his arms crossed at a railroad platform
Stock Photo #1598R-193642, Sales Strategy
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Sales Strategy
Stock Photo #1849-1957, Cheerleaders with pom_poms
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Cheerleaders with pom_poms
Stock Photo #1660R-26762, Two male acrobats performing
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Two male acrobats performing
Stock Photo #1895-11699, Army issue folding binoculars, c 1895.
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Army issue folding binoculars, c 1895.
Stock Photo #1598R-192631, Office Desk
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Office Desk
Stock Photo #1598R-153526, Man at Computer
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Man at Computer
Stock Photo #1825-1566, Interiors of a bedroom
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Interiors of a bedroom
Stock Photo #1598R-183270, Detail of a Diagram
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Detail of a Diagram
Stock Photo #1491R-1058520, Computer monitor with circuitry
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Computer monitor with circuitry
Stock Photo #1597-130694, glasses, eyeglass, eyeglasses, frame, lens, lenses, glasses bearers, spectacle wearer, visual help, visual strength, v
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glasses, eyeglass, eyeglasses, frame, lens, lenses, glasses bearers, spectacle wearer, visual help, visual strength, v
Stock Photo #1491R-1059166, Woman checking e-mail
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Woman checking e-mail
Stock Photo #4231-9804, Tartu University Hospital in Estonia
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Tartu University Hospital in Estonia
Stock Photo #1598R-195782, Monitoring Heart
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Monitoring Heart
Stock Photo #1598R-154299, Internet on a Computer Monitor
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Internet on a Computer Monitor
Stock Photo #1828R-95046, Businessman Looking at Self Adhesive Notes on Glass Board in Studio
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Businessman Looking at Self Adhesive Notes on Glass Board in Studio
Stock Photo #1830-39791, Hand on Leash of Guide Dog
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Hand on Leash of Guide Dog
Stock Photo #4170R-3978, Three fashion models posing
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Three fashion models posing
Stock Photo #1598R-9950042, Mobile phone on side against cloudy sky
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Mobile phone on side against cloudy sky
Stock Photo #1491R-1046042, Laptop computer with CD-ROM tray
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Laptop computer with CD-ROM tray
Stock Photo #1828R-94584, Young Man and Young Woman Working in an Office, Looking Through Glass Board, Germany
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Young Man and Young Woman Working in an Office, Looking Through Glass Board, Germany
Stock Photo #1598R-193777, Computer Glasses
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Computer Glasses
Stock Photo #1491R-1061936, Blue and white diagram with grid superimposed
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Blue and white diagram with grid superimposed
Stock Photo #1491R-1062184, Red images with superimposed lines and circles
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Red images with superimposed lines and circles
Stock Photo #1598R-20523, Coworkers standing by line chart, portrait
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Coworkers standing by line chart, portrait
Stock Photo #1555R-27043, Molecular model
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Molecular model
Stock Photo #1849-2289, Businesswoman reading benefits book at restaurant table
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Businesswoman reading benefits book at restaurant table
Stock Photo #1598R-110560, Close-Up of a Mathematical Diagram
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Close-Up of a Mathematical Diagram
Stock Photo #1598R-164484, SCSI Cables and a Computer Monitor
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SCSI Cables and a Computer Monitor
Stock Photo #1824R-111650, Nurse assisting senior patient
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Nurse assisting senior patient
Stock Photo #1598R-186736, Close-Up of Molecular Structure Diagrams
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Close-Up of Molecular Structure Diagrams
Stock Photo #1598R-65503, Portrait of a teenage girl sitting in a classroom
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Portrait of a teenage girl sitting in a classroom
Stock Photo #1598R-194002, Computer as Foe
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Computer as Foe
Stock Photo #1598R-79241, Network Error on Computer Monitor
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Network Error on Computer Monitor
Stock Photo #1815-49128, Germany, Ammersee, Diessen, Young woman with baby boy 7 months on bed, using mobile phone
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Germany, Ammersee, Diessen, Young woman with baby boy 7 months on bed, using mobile phone
Stock Photo #1839R-35049, Confident Male teacher giving lessons in classroom
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Confident Male teacher giving lessons in classroom
Stock Photo #1491R-1048420, Http
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Http
Stock Photo #1598R-89784, Videophone
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Videophone
Stock Photo #1598R-146856, Man Sitting in an Internet Caf?
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Man Sitting in an Internet Caf?
Stock Photo #1491R-1041733, Passengers Checking Flight Schedule
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Passengers Checking Flight Schedule
Stock Photo #1839R-35043, Happy male teacher with textbooks in classroom
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Happy male teacher with textbooks in classroom
Stock Photo #1589-144907, Ants moving concrete block
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Ants moving concrete block
Stock Photo #1491R-1038821, Boy doing addition and subtraction on chalkboard
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Boy doing addition and subtraction on chalkboard
Stock Photo #1598R-87979, Medical Industry
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Medical Industry
Stock Photo #1850-40561, Taraxacum officinale, Dandelion clock
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Taraxacum officinale, Dandelion clock
Stock Photo #1598R-229648, Global Connection of Computers and Telephones
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Global Connection of Computers and Telephones
Stock Photo #1491R-1037536, Send Message on a Computer Monitor
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Send Message on a Computer Monitor
Stock Photo #1491R-1061482, Close-up of bound & rolled diagrams
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Close-up of bound & rolled diagrams
Stock Photo #1598R-86073, Man Watching Television
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Man Watching Television
Stock Photo #1598R-233165, Laptop
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Laptop
Stock Photo #1566-1004405, A teacher guides a blind child´s hands over the outline of a lizard in raised type in a special needs writing class at the Blind Children´s Learning Center in Santa Ana, CA Note red ´buttons´ in corners to guide the child
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A teacher guides a blind child´s hands over the outline of a lizard in raised type in a special needs writing class at the Bl...
A teacher guides a blind child´s hands over the outline of a lizard in raised type in a special needs writing class at the Blind Children´s Learning Center in Santa Ana, CA Note red ´buttons´ in corners to guide the child
Stock Photo #1491R-1058706, Teacher writing on blackboard and talking
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Teacher writing on blackboard and talking
Stock Photo #1839R-35013, Serious male teacher in contemplation
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Serious male teacher in contemplation
Stock Photo #1598R-86778, an elderly caucasian woman lies in a hospital bed as she chats with a doctor
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an elderly caucasian woman lies in a hospital bed as she chats with a doctor
Stock Photo #1598R-194606, Professor Giving Lecture
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Professor Giving Lecture
Stock Photo #1598R-36106, Teacher talking to class, pointing at pie chart on chalkboard
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Teacher talking to class, pointing at pie chart on chalkboard
Stock Photo #1491R-1038977, Man holding glasses and gesturing; chart on screen behind him
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Man holding glasses and gesturing; chart on screen behind him
Stock Photo #1849-2465, Senior couple sewing broken heart
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Senior couple sewing broken heart
Stock Photo #1598R-109192, Laptop with a Blank Monitor
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Laptop with a Blank Monitor
Stock Photo #1598R-178394, Side profile of a teenage boy sitting in front of a laptop in a classroom
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Side profile of a teenage boy sitting in front of a laptop in a classroom
Stock Photo #1849-999, Large hand holding small man holding smaller man
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Large hand holding small man holding smaller man
Stock Photo #1491R-1057664, Green abstract background
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Green abstract background
Stock Photo #1598R-69079, Computer Monitor
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Computer Monitor
Stock Photo #1598R-77966, Upward Arrow
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Upward Arrow
Stock Photo #4231-8418, Moscow, Russia
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Moscow, Russia
Stock Photo #1598R-193101, Businesswoman with Headset and Laptop
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Businesswoman with Headset and Laptop
Stock Photo #1527R-03808, TV News Presenter
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TV News Presenter
Stock Photo #1598R-105154, Two businessmen with a businesswoman looking at a laptop
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Two businessmen with a businesswoman looking at a laptop
Stock Photo #1839R-35045, Portrait of male teacher arms crossed in classroom
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Portrait of male teacher arms crossed in classroom
Stock Photo #1839R-35072, Cute little girl writing on blackboard
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Cute little girl writing on blackboard
Stock Photo #1598R-140310, Portrait of a teenage boy sitting in front of a laptop
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Portrait of a teenage boy sitting in front of a laptop
Stock Photo #1598R-204125, Knowledge
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Knowledge
Stock Photo #1839R-35050, Confident Male teacher giving lessons in classroom
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Confident Male teacher giving lessons in classroom
Stock Photo #4170R-5787, Five people involved in different activities
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Five people involved in different activities
Stock Photo #1895-29724, Looking through a telescope, c 1930
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Looking through a telescope, c 1930
Stock Photo #1598R-198569, Globes,Arrows & Numbers
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Globes,Arrows & Numbers
Stock Photo #1598R-146595, Projection of Circuitry on a Book
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Projection of Circuitry on a Book
Stock Photo #1598R-140322, Two teenage girls passing notes in a classroom
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Two teenage girls passing notes in a classroom
Stock Photo #1598R-126912, Computer
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Computer
Stock Photo #1895-20237, German telescopic machine gun sight, c 1918.
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German telescopic machine gun sight, c 1918.
Stock Photo #1895-33110, Periscope, Mark IX, serial number 22289, 1918.
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Periscope, Mark IX, serial number 22289, 1918.
Stock Photo #1566-1004412, A teacher helps vision-impaired boys color a sketch of a lizard using raised type they can recognize by touch in a special needs pre-Braille writing class at the Blind Children´s Learning Center in Santa Ana, CA
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A teacher helps vision-impaired boys color a sketch of a lizard using raised type they can recognize by touch in a special ne...
A teacher helps vision-impaired boys color a sketch of a lizard using raised type they can recognize by touch in a special needs pre-Braille writing class at the Blind Children´s Learning Center in Santa Ana, CA
Stock Photo #1598R-45674, Surveillance camera and monitor mounted on wall, low angle view
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Surveillance camera and monitor mounted on wall, low angle view
Stock Photo #1598R-79505, WWW on a Computer Monitor
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WWW on a Computer Monitor
Stock Photo #1598R-198801, Surgery on Monitor
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Surgery on Monitor
Stock Photo #1598R-140292, Portrait of a teenage boy stretching a rubber band in a classroom
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Portrait of a teenage boy stretching a rubber band in a classroom
Stock Photo #1850-43185, Pisum sativum, Pea
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Pisum sativum, Pea
Stock Photo #1828R-94567, Young Man and Young Woman Working in an Office, Looking Through Glass Board, Germany
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Young Man and Young Woman Working in an Office, Looking Through Glass Board, Germany
Stock Photo #1815R-64339, Germany, Munich, Businessman holding an egg, portrait
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Germany, Munich, Businessman holding an egg, portrait
Stock Photo #1491R-1062697, Doctor filling in prescription
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Doctor filling in prescription
Stock Photo #1598R-73188, Detail of a Power Diagram
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Detail of a Power Diagram
Stock Photo #1491R-1040176, Computer monitor
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Computer monitor
Stock Photo #1598R-19639, Patient having eye test, optician pointing to chart
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Patient having eye test, optician pointing to chart
Stock Photo #1598R-142525, Low angle view of two businessmen with a businesswoman looking at a laptop
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Low angle view of two businessmen with a businesswoman looking at a laptop
Stock Photo #1828R-95510, Young Businesswoman Sitting on Sofa using Digital Display, Studio Shot on White Background
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Young Businesswoman Sitting on Sofa using Digital Display, Studio Shot on White Background
Stock Photo #1042R-10817, Eyeglasses on an eye chart
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Eyeglasses on an eye chart
Stock Photo #1598R-89581, .Org on a Computer Monitor
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.Org on a Computer Monitor
Stock Photo #1804R-12466, A young woman inserting a contact lens
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A young woman inserting a contact lens
Stock Photo #1849-2120, Man listening to feedback from faces on tree
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Man listening to feedback from faces on tree
Stock Photo #1598R-106543, Open Laptop Computer
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Open Laptop Computer
Stock Photo #1839R-35027, Happy female teacher holding teacher's pointer in classroom
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Happy female teacher holding teacher's pointer in classroom
Stock Photo #1598R-89665, Computer with a Glowing Keyboard
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Computer with a Glowing Keyboard
Stock Photo #1598R-156587, Marketing & Research
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Marketing & Research
Stock Photo #1598R-67663, Portrait of a businesswoman smiling
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Portrait of a businesswoman smiling
Stock Photo #1849-2962, Locks standing in a row locked together
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Locks standing in a row locked together
Stock Photo #1555R-332236, Child playing with block
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Child playing with block
Stock Photo #1598R-169935, Group of businesswomen sitting at conference table
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Group of businesswomen sitting at conference table
Stock Photo #1598R-165717, Group Seated Around Computer
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Group Seated Around Computer
Stock Photo #1491R-1057740, Woman in Headset in Front of Computer Monitor
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Woman in Headset in Front of Computer Monitor
Stock Photo #1491R-1082866, Businesspeople in office
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Businesspeople in office
Stock Photo #4450R-10247, A coffee shop and cafe in High Falls called The Last Bite. A woman leaning on the counter, by the coffee machine.New York, USA
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A coffee shop and cafe in High Falls called The Last Bite. A woman leaning on the counter, by the coffee machine.New York, US...
A coffee shop and cafe in High Falls called The Last Bite. A woman leaning on the counter, by the coffee machine.New York, USA
Stock Photo #1598R-105150, Portrait of a businesswoman standing with her arms folded in a conference room
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Portrait of a businesswoman standing with her arms folded in a conference room
Stock Photo #1598R-164338, Electronic Circuit Board
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Electronic Circuit Board
Stock Photo #1660R-9117, Portrait of a young man sitting in a wheelchair
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Portrait of a young man sitting in a wheelchair
Stock Photo #1491R-1057157, Businessman standing on computer keyboard
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Businessman standing on computer keyboard
Stock Photo #1491R-1057100, Laptop with e-mail and hip guys
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Laptop with e-mail and hip guys
Stock Photo #1598R-224820, Girl (4-6) looking through microscope in classroom
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Girl (4-6) looking through microscope in classroom
Stock Photo #1555R-164033, Graph
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Graph
Stock Photo #1598R-103344, Boy and girl (8-9), wiping blackboard, in school classroom
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Boy and girl (8-9), wiping blackboard, in school classroom
Stock Photo #1491R-1058212, Diagram of football play on grid
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Diagram of football play on grid
Stock Photo #1598R-242626, Senior business woman presenting chart in office meeting
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Senior business woman presenting chart in office meeting
Stock Photo #1598R-195788, Healthcare Record Keeping
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Healthcare Record Keeping
Stock Photo #1491R-1057162, Handshake on computer monitor
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Handshake on computer monitor
Stock Photo #1491R-1048471, Melted Computer Monitor
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Melted Computer Monitor
Stock Photo #1849-2984, Stacked, gold British pound symbols
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Stacked, gold British pound symbols
Stock Photo #4286-34740, Female executive gives seminar to group of businessmen and women. We also have a similar shot with a man leading the seminar.
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Female executive gives seminar to group of businessmen and women. We also have a similar shot with a man leading the seminar.
Stock Photo #1598R-116667, Businessman in Schematics
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Businessman in Schematics
Stock Photo #1598R-153536, Business at the Computer
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Business at the Computer
Stock Photo #1491R-1037554, Glowing Computer Monitor
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Glowing Computer Monitor
Stock Photo #1848-541983, Acoustic aid for the blind at a traffic light for pedestrians and cyclists, Germany, Europe
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Acoustic aid for the blind at a traffic light for pedestrians and cyclists, Germany, Europe
Stock Photo #1527R-03820, TV News Presenters, Make-up Artist and a Producer in a TV Studio
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TV News Presenters, Make-up Artist and a Producer in a TV Studio
Stock Photo #4170R-3918, Side profile of a couple holding glasses of wine
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Side profile of a couple holding glasses of wine
Stock Photo #4208R-25676, CAD designers and architects working in office
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CAD designers and architects working in office
Stock Photo #1491R-1058621, Alternative medicine
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Alternative medicine
Stock Photo #4231-10299, Cancouver Airport, Canada
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Cancouver Airport, Canada
Stock Photo #1491R-1061489, Grid superimposed over plans, cell phone and glasses
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Grid superimposed over plans, cell phone and glasses
Stock Photo #1598R-45740, Business professionals in conference room on mobile phones
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Business professionals in conference room on mobile phones
Stock Photo #1815R-29192, Surgery team in the operating room
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Surgery team in the operating room
Stock Photo #1491R-1079453, Jean Dry Lake, Nevada, USA
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Jean Dry Lake, Nevada, USA
Stock Photo #1491R-1059299, Instructor in front of class
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Instructor in front of class
Stock Photo #1598R-156655, Respiration During Exercise
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Respiration During Exercise
Stock Photo #1848-562195, Watering can beside a euro symbol, symbolic image of a euro plant, illustration, 3D visualisation
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Watering can beside a euro symbol, symbolic image of a euro plant, illustration, 3D visualisation
Stock Photo #1598R-43099, College Class
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College Class
Stock Photo #1598R-241363, Person operating a hand held digital organizer
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Person operating a hand held digital organizer
Stock Photo #1491R-1030392, Detail of a Line Chart
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Detail of a Line Chart
Stock Photo #1598R-186038, Man and a Computer Graphics Projection
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Man and a Computer Graphics Projection
Stock Photo #1598R-227489, Detail of a Diagram
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Detail of a Diagram
Stock Photo #1895-8007, Selection of opera glasses, 1780-1820.
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Selection of opera glasses, 1780-1820.
Stock Photo #1598R-178416, Portrait of a young woman holding sheets of paper
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Portrait of a young woman holding sheets of paper
Stock Photo #1598R-154728, Detail of an Electronic Schematic
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Detail of an Electronic Schematic
Stock Photo #4208R-15560, CAD designer measuring part at desk in office
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CAD designer measuring part at desk in office
Stock Photo #1598R-178324, Side profile of two young men and a young woman wearing lab coats in a classroom
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Side profile of two young men and a young woman wearing lab coats in a classroom
Stock Photo #1598R-9960371, USA, Nevada, Las Vegas
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USA, Nevada, Las Vegas
Stock Photo #1598R-91005, Nutrition Class
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Nutrition Class
Stock Photo #1828R-94581, Young Man and Young Woman Working in an Office, Looking Through Glass Board, Germany
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Young Man and Young Woman Working in an Office, Looking Through Glass Board, Germany
Stock Photo #1598R-153041, Woman Working Late in a Library
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Woman Working Late in a Library
Stock Photo #1598R-176731, Female doctor holding medical chart, indoors, portrait
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Female doctor holding medical chart, indoors, portrait
Stock Photo #1598R-9960850, Angry boy (9-11) standing at blackboard in classroom portrait, low angle view
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Angry boy (9-11) standing at blackboard in classroom portrait, low angle view
Stock Photo #1598R-67666, Portrait of a businessman talking on a mobile phone
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Portrait of a businessman talking on a mobile phone
Stock Photo #4029R-360175, calm, examine, freisteller, geesthacht, Germany, Holstein
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calm, examine, freisteller, geesthacht, Germany, Holstein
Stock Photo #1555R-177013, Letter blocks
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Letter blocks
Stock Photo #1491R-1050060, Doctor Explaining Chart of Spine
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Doctor Explaining Chart of Spine
Stock Photo #1660R-7777, Portrait of a teenage girl wearing doctor's clothing
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Portrait of a teenage girl wearing doctor's clothing
Stock Photo #1555R-119070, Alphabet blocks
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Alphabet blocks
Stock Photo #1598R-103331, Girl (8-9), standing by blackboard, in school classroom, portrait
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Girl (8-9), standing by blackboard, in school classroom, portrait
Stock Photo #1598R-67665, Portrait of a businessman standing in a conference room
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Portrait of a businessman standing in a conference room
Stock Photo #1491R-1039171, Blueprint with ruler
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Blueprint with ruler
Stock Photo #1598R-78831, Computer
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Computer
Stock Photo #1598R-185513, Man and a Woman Talking at an Internet Caf?
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Man and a Woman Talking at an Internet Caf?
Stock Photo #1849-1492, Sad woman sitting at typewriter
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Sad woman sitting at typewriter
Stock Photo #1598R-159500, Looking at Pictures of Teeth
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Looking at Pictures of Teeth
Stock Photo #1555R-164034, Chart
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Chart
Stock Photo #1527R-03812, TV News Presenters Sitting on a Desk in a TV Studio
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TV News Presenters Sitting on a Desk in a TV Studio
Stock Photo #1598R-164423, Glowing Computer Screen
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Glowing Computer Screen
Stock Photo #1491R-1062163, Pale green and blue structural image
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Pale green and blue structural image
Stock Photo #1598R-65853, Girl (6-7), writing alphabet on blackboard, in school classroom
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Girl (6-7), writing alphabet on blackboard, in school classroom
Stock Photo #1598R-114380, Television
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Television
Stock Photo #4170R-3921, Woman sitting with her dog standing near her
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Woman sitting with her dog standing near her
Stock Photo #1839R-35076, Humorous little girl with textbooks in classroom
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Humorous little girl with textbooks in classroom
Stock Photo #1527R-03805, TV Presenter Sitting on a Desk in a TV Studio
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TV Presenter Sitting on a Desk in a TV Studio
Stock Photo #1527R-03807, TV News Presenter
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TV News Presenter
Stock Photo #1598R-142516, Portrait of a businessman sitting in a conference room
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Portrait of a businessman sitting in a conference room
Stock Photo #1598R-181887, Computer Monitor with Ticker Tape
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Computer Monitor with Ticker Tape
Stock Photo #1598R-193835, Man with a Digital Video Camera
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Man with a Digital Video Camera
Stock Photo #1491R-1026035, Computer with picture of envelope on screen
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Computer with picture of envelope on screen
Stock Photo #1491R-1046063, Hardcover books
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Hardcover books
Stock Photo #1598R-181979, Receptionist Wearing a Headset
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Receptionist Wearing a Headset
Stock Photo #1598R-183057, Close-up of a Hand Holding a Remote Control
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Close-up of a Hand Holding a Remote Control

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