判断题

试车成功后要及时断开电源，让电动机停转，以确保安全。( )

答案：正确

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What does the Salvation Army do with red kettles ? A.
Volunteers of the salvation army put a red kettle at the public library.
B.
Volunteers of the salvation army put a red kettle at a prominent place of public, gathering and ring a bell to urge passers-by to drop money into the kettle in the spirit of Christmas. C.
Volunteers gather and ring a bell to urge passers-by to drop books into the kettle in the spirit of Christmas. D.
Volunteers gather and ring a bell to urge wealthy people to drop money into the kettle in the spirit of Christmas.

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高强度螺栓不正确的紧固方法是下列哪一种？

A.扭矩法
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D.用普通扳手紧固