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The workers have the machine once a week to make sure that it runs properly.A.ch

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The workers have the machine once a week to make sure that it runs properly.A.ch

The workers have the machine ______ once a week to make sure that it runs properly.

A.checked

B.examined

C.tested

D.experienced

试题答案

A

从句意来看工人们检查机器是确保机器能正常运转，即侧重的是“核实”。

标签：weekoncemaketomachine

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