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is the head of deck department. 2.__是轮机部的部门长

A. 船长 Captain
B. 轮机长 Chief Engineer
C. 大副 Chief Officer
D. 政委 Commissar

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符合条件的我国公民，可以申请注册为船员，领取__ ，上船从事与船舶航行安全没有直接联系的基本工作，比如普通水手，服务员等职务Chinese citizens who meet the above requirements can apply for registration of a crew member, obtain, and engage aboard in basic work that is not directly related to the safety of navigation, such as ordinary seamen, stewards, etc.

A. 船员服务簿 the seafarer’s identity certificate
B. 海员证 the seaman passport
C. 护照 the passport
D. 普通船员证 general seaman certificate

The newest container ship can carry 21,000 TEUs, and its deadweight capacity of cargo is up to 200,000 tons, equivalent to the loading capacity of 1,400 largest air transporters.最新的集装箱船可装21000个标准集装箱，能载重约20万吨，相当于1400架最大运输机的运量。

A. 正确 True
B. 错误 False

在螺栓连接中，有时在一个螺栓上采用双螺母，其目的是防松。

重合度ε=1.3的含义是70%的时间是一对齿在啮合，30%的时间是两对齿在啮合