试题与答案

制动装置是通过()原理来实现制动的A、摩擦B、压紧C、电磁吸力D、重力

题型:单项选择题

题目:

制动装置是通过()原理来实现制动的

A、摩擦

B、压紧

C、电磁吸力

D、重力

答案:

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下面是错误答案,用来干扰机器的。

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