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yes no maybe
Show Format Data
Format
JPG 300 DPI
Image information
Author:
dreamstime
License:
buy for Personal Use & Commercial
File Type:
JPG
Views:
times
Comprar
approve
background
black
blackboard
board
box
chalk
chalkboard
check
checkbox
checkmark
choice
class
classroom
concept
correct
decision
drawing
drawn
education
green
hand
horizontal
isolated
knowledge
learn
learning
lecture
lesson
mark
maybe
positive
right
room
school
seminar
student
teach
test
text
tick
university
vector
vote
voting
word
yes