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    Caucasian girl raising her hand while sitting on her desk during the lesson with Caucasian female teacher. Primary education social distancing health safety during Covid19 Coronavirus pandemic. — Stock Photo
    Caucasian girl raising her hand while sitting on her desk during the lesson with Caucasian female teacher. Primary education social distancing health safety during Covid19 Coronavirus pandemic.
    Doctor and nurse examining x-ray in hospital — Stock Photo
    Doctor and nurse examining x-ray in hospital
    High angle front view of a Caucasian teenage boy sitting at a desk in a school classroom looking away, thinking, classmates sitting at desks in the background — Stock Photo
    High angle front view of a Caucasian teenage boy sitting at a desk in a school classroom looking away, thinking, classmates sitting at desks in the background
    Redhead female freelancer in yellow sheets working with laptop lying on bed — Stock Photo
    Redhead female freelancer in yellow sheets working with laptop lying on bed
    Young university students practicing chemistry experiment in lab — Stock Photo
    Young university students practicing chemistry experiment in lab
    Caucasian male doctor showing how to use hand sanitizer to group of diverse students at school. health protection and safety at school during covid-19 pandemic concept — Stock Photo
    Caucasian male doctor showing how to use hand sanitizer to group of diverse students at school. health protection and safety at school during covid-19 pandemic concept
    Side view close up of two young young African schoolgirls sitting at their desk whispering to each other during a lesson in a township elementary school classroom. — Stock Photo
    Side view close up of two young young African schoolgirls sitting at their desk whispering to each other during a lesson in a township elementary school classroom.
    Portrait confidant high school girl student studying in classroom — Stock Photo
    Portrait confidant high school girl student studying in classroom
    Student writing on adhesive note in book — Stock Photo
    Student writing on adhesive note in book
    Young man working with laptop at desk at home. — Stock Photo
    Young man working with laptop at desk at home.
    Thoughtful young male student — Stock Photo
    Thoughtful young male student
    Pensive charming woman in glasses writing in notebook at round wooden table with coffee in cafe — Stock Photo
    Pensive charming woman in glasses writing in notebook at round wooden table with coffee in cafe
    Female student reading book while standing by shelf in library — Stock Photo
    Female student reading book while standing by shelf in library
    Chinese father helping son with homework — Stock Photo
    Chinese father helping son with homework
    Teenage girl writing outside on terrace at sunset. — Stock Photo
    Teenage girl writing outside on terrace at sunset.
    Young attractive elegant woman in eyeglasses reading book in city garden — Stock Photo
    Young attractive elegant woman in eyeglasses reading book in city garden
    Teenage girl practicing chemistry experiment in lab — Stock Photo
    Teenage girl practicing chemistry experiment in lab
    Portrait close up of a Caucasian teenage boy with dark hair and grey eyes sitting at a desk in a school classroom looking straight to camera — Stock Photo
    Portrait close up of a Caucasian teenage boy with dark hair and grey eyes sitting at a desk in a school classroom looking straight to camera
    Front view close up of a group of young African schoolchildren sitting at their desks, raising hands to answer a question during a lesson in a township elementary school classroom — Stock Photo
    Front view close up of a group of young African schoolchildren sitting at their desks, raising hands to answer a question during a lesson in a township elementary school classroom
    Young collage student using computer and mobile device studying online. Education and online learning. — Stock Photo
    Young collage student using computer and mobile device studying online. Education and online learning.
    Young archaeologists comparing pottery colors with color chart scheme in laboratory. — Stock Photo
    Young archaeologists comparing pottery colors with color chart scheme in laboratory.
    Teacher talking to high school students sitting in common room — Stock Photo
    Teacher talking to high school students sitting in common room
    Young male archaeologist measuring ancient artifact in laboratory. — Stock Photo
    Young male archaeologist measuring ancient artifact in laboratory.
    Portrait confident young female freelancer working at laptop in home office — Stock Photo
    Portrait confident young female freelancer working at laptop in home office
    Young man college student studying at laptop — Stock Photo
    Young man college student studying at laptop
    Young female rural teacher reading book to pupils in outdoor learning — Stock Photo
    Young female rural teacher reading book to pupils in outdoor learning
    Chinese man and woman using laptop in cafe — Stock Photo
    Chinese man and woman using laptop in cafe
    Young couples college students studying at table — Stock Photo
    Young couples college students studying at table
    Female teacher helping student studying in classroom — Stock Photo
    Female teacher helping student studying in classroom
    Father helping teenage son with homework in kitchen — Stock Photo
    Father helping teenage son with homework in kitchen
    Caucasian boy sleeping on his desk in the class at school. school and education concept — Stock Photo
    Caucasian boy sleeping on his desk in the class at school. school and education concept
    Caucasian girl writing in a book while sitting on her desk at school. Primary education social distancing health safety during Covid19 Coronavirus pandemic. — Stock Photo
    Caucasian girl writing in a book while sitting on her desk at school. Primary education social distancing health safety during Covid19 Coronavirus pandemic.
    College students using digital tablet in stairway — Stock Photo
    College students using digital tablet in stairway
    Boy holding a molecular structure model — Stock Photo
    Boy holding a molecular structure model
    Front view close up of a young African schoolboy sitting at his desk looking at a tablet computer and smiling during a lesson in a township elementary school classroom, in the background classmates are sitting at their desks working — Stock Photo
    Front view close up of a young African schoolboy sitting at his desk looking at a tablet computer and smiling during a lesson in a township elementary school classroom, in the background classmates are sitting at their desks working
    Young scientists doing experiment in laboratory with liquid. — Stock Photo
    Young scientists doing experiment in laboratory with liquid.
    Doctor examining x-ray at hospital — Stock Photo
    Doctor examining x-ray at hospital
    High angle view of teenage girl using smartphone at desk in classroom — Stock Photo
    High angle view of teenage girl using smartphone at desk in classroom
    University student selecting book from library in college — Stock Photo
    University student selecting book from library in college
    Female freelancer working at laptop on living room floor — Stock Photo
    Female freelancer working at laptop on living room floor
    Male surgeon reading x-ray in operation theater — Stock Photo
    Male surgeon reading x-ray in operation theater
    Young asian college students studying together against campus — Stock Photo
    Young asian college students studying together against campus
    Schoolgirl writing in book — Stock Photo
    Schoolgirl writing in book
    Caucasian male doctor talking to group of diverse students sitting in the class at school. health protection and safety at school during covid-19 pandemic concept — Stock Photo
    Caucasian male doctor talking to group of diverse students sitting in the class at school. health protection and safety at school during covid-19 pandemic concept
    Young students studying in classroom — Stock Photo
    Young students studying in classroom
    Woman using mobile phone in library — Stock Photo
    Woman using mobile phone in library
    Boy using magnifying glass on grass. — Stock Photo
    Boy using magnifying glass on grass.
    Little girl studying at home — Stock Photo
    Little girl studying at home
    College students studying in library at university — Stock Photo
    College students studying in library at university
    Chinese students using laptop in cafe — Stock Photo
    Chinese students using laptop in cafe
    Young female archaeology researcher in laboratory analyzing ancient antler tool. — Stock Photo
    Young female archaeology researcher in laboratory analyzing ancient antler tool.
    Adorable chinese kids doing homework at home, parents sitting behind — Stock Photo
    Adorable chinese kids doing homework at home, parents sitting behind
    Group of multi ethnic kids sitting on their desk in the classroom at school. Primary education social distancing health safety during Covid19 Coronavirus pandemic. — Stock Photo
    Group of multi ethnic kids sitting on their desk in the classroom at school. Primary education social distancing health safety during Covid19 Coronavirus pandemic.
    Female student looking in window — Stock Photo
    Female student looking in window
    Side view smart redhead female freelancer in yellow sheets working with laptop lying on bed — Stock Photo
    Side view smart redhead female freelancer in yellow sheets working with laptop lying on bed
    Thoughtful male student in bright headphones studying in university square and writing in note book sitting on fence — Stock Photo
    Thoughtful male student in bright headphones studying in university square and writing in note book sitting on fence
    Happy young female entrepreneurs working at laptop — Stock Photo
    Happy young female entrepreneurs working at laptop
    Grandparents helping grandchildren with homework at dining table — Stock Photo
    Grandparents helping grandchildren with homework at dining table
    Portrait of happy schoolboy — Stock Photo
    Portrait of happy schoolboy
    African american boy studying while sitting on his desk in the class at school. school and education concept — Stock Photo
    African american boy studying while sitting on his desk in the class at school. school and education concept