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Two students with light bulb and question mark on chalkboard

Stock Photo:
Image ID: 88138546
Release Information:
Signed model release filed with Shutterstock, Inc
Small
334x500 4.6"x6.9" (72dpi) 169 KB
Med
667x1000 2.2"x3.3" (300dpi) 591 KB
Large
3744x5616 12.5"x18.7" (300dpi) 9.2 MB
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