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问题 单项选择题

船舶在进行应急拖带时，以下关于改变航向，提法有误的是（）。

A.拖带中的大幅度改向必须分段进行

B.应避免20°及以上的改向，尤其是低速拖航中

C.每次改向量不宜小于5°，也不宜超过15°

D.无风流时，每次改向可按5°～15°进行

答案

参考答案：C

选择题

He expressed a hope _______ he would visit China again the next year, and this was the very hope ________ he would express as soon as he arrived in the country.

A．that; that

B．which; which

C．that; which

D．which; that
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问答题 简答题

2000型监控装置主机箱由哪些插件组成？
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