A.Marijuana is the illegal drug most used by kids.
B.Pot smoking may directly lead to the use of cocaine and heroin by young people.
C.The withdrawal from pot smoking contributes to abandoning other drugs.
D.This is the way they found effective to make contributions to society.
第1题
A.1-2-3-4
B.1-3-4-2
C.1-4-3-2
D.1-2-4-3
E.2-3-4-1
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