One of the responsibilities of the Coast Guard is to make sure that all ships strictly follow traffi-中华考试网

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One of the responsibilities

来源 :中华考试网 2018-02-10

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单选题One of the responsibilities of the Coast Guard is to make sure that all ships strictly follow traffic rules in busy harbors.

A.cautiously

B.dutifully

C.faithfully

D.skillfully

参考答案：B

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