Multiple Choice
Studies in the mid-1970s indicated that of the American soldiers who used heroin on a regular basis in Vietnam,__________.
A) about 50 percent continued after returning home
B) about 50 percent ended up as drug-abuse counselors
C) very few of them continued after returning home
D) heroin use increased after they had returned home
Correct Answer:

Verified
Correct Answer:
Verified
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