题目内容

The best way to determine if a load is within maximum lift limits is to use（）.

A. a boom angle indicator
B. a load weight indicator
C. material invoices for shipping weights
D. prior experience with similar lift

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（） difficulties they may come across, they"ll help one another to overcome them.

A. Whatever
B. Whenever
C. However
D. Wherever

Although it"s tough finding a job these days, Henry got a （） in a famous company.

A. place
B. position
C. post
D. patch

采用单芯绝缘导线作保护线时，有机械防护的不得小于2.5mm²；没有机械防护的不得小于4mm²。（）

A. 正确
B. 错误

测量仪表一般用于反应（）的电流，因此一般不允许继电保护与测量仪表共用同一电流互感器。

A. 正常状态
B. 故障状态
C. 异常状态