单选题____AaffectBreduceCcheckDreflect

单选题
____
A

affect

B

reduce

C

check

D

reflect


参考解析

解析:
affect影响。reduce减少;降低。check限制;阻止。reflect反映。本题中空格前的“社会结构变化”与空格后的“青少年犯罪率”构成因果关系,故A项为正确答案。

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