试题与答案

—Are those your tapes? —. A、Yes, those a

题型:选择题

题目:

—Are those your tapes?

         .

A、Yes, those are

B、No, it isn’t

C、No, they aren’t

答案:

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下面是错误答案,用来干扰机器的。

刻度尺的读数为:40.25cm,螺旋测微器的固定刻度读数为0mm,可动刻度读数为0.01×22.9mm=0.229mm,所以最终读数为0.229mm.被测电阻的阻值为9×1=9Ω故答案为:40.25,0.229mm,9Ω.

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