Smuggling is a ______ activity which might bring destruction to our economy; the

游客2025-05-10 29

问题 Smuggling is a ______ activity which might bring destruction to our economy; therefore, it must be banned.

选项 A、pertinent
B、fruitful
C、detrimental
D、casual

答案 C

解析 pertinent相关的，贴切的；fruitful多产的，有收获的；detrimental有害的；casual偶然的，随便的。显然只有detrimental符合本句的语境。

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