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Confident student pointing at formula on blackboard during chemistry lesson

Stock Photo:
Image ID: 59636464
Release Information:
Signed model release filed with Shutterstock, Inc
Copyright: Pressmaster
Small
500x334 6.9"x4.6" (72dpi) 174 KB
Med
1000x667 3.3"x2.2" (300dpi) 594 KB
Large
4368x2912 14.6"x9.7" (300dpi) 6.1 MB
Super
8736x5824 29.1"x19.4" (300dpi) approx.20.2 MB
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