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简答题 简述空气喷涂的作业要点。

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为了方便记忆,密码最好采用生日、姓名缩写、常见英文单词等。

A. 对
B. 错

移动对象时,对象的继承权限将不会改变。

A. 对
B. 错

一发二收RTU即RTU同时向两级调度可发相同内容的数据。

A. 对
B. 错

Which kind of vessel is not required to comply with the ISM code until 2002?()

A. Passenger ships and high-speed crafts of 500 gross tons or more
B. Oil tankers and Chemical tankers and Gas carriers
C. Bulk freight vessels
D. General cargo vessels

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