题目内容

由侧线和侧线组成的线岔,距中心锚结较近的接触线位于上方。

A. 正确
B. 错误

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If no distress acknowledgement is received()a DSC distress call transmission, then the ship in distress may repeat the DSC distress call attempt after a delay of between 3.5 and 4.5 minutes from the beginning of the initial call.

A. relevant to
B. relate to
C. in response to
D. in relation to

约束性制裁是什么?

技术经济分析的基本原则

外在报酬通常是指员工除工资外,由工作本身所获得的心理满足和心理收益。

A. 正确
B. 错误

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