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เฉลยแบบทดสอบกอนเรียน(Pre-test)

1.(a) 2.(c) 3.(a) 4.(b) 5.(b) 6.(b) 7.(b) 8.(a)

9.(a) 10.(b) 11.(b) 12.(a) 13.(b) 14.(b) 15.(a) 16.(b) 17.(b)

18.(b) 19.(a) 20.(c)