0n a crane ,the boom indicator tells the operator what angle the boom angle is compared to the（）. -题库考试答案搜索网

0n a crane ,the boom indicator tells the operator what angle the boom angle is compared to the（）.

单选题

2022-03-16 05:58

A、vertical position
B、horizontal position
C、boom stop angle
D、minimum radius angle

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正确答案

B

试题解析

标签：航海英语综合练习

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