题目内容

量块按“级”使用时,以量块的标称长度作为工作尺寸,该尺寸包含了量块的误差。

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精密测量中,量块按“等”使用比按“级”使用要精确。

A. 对
B. 错

Where did the seller go earlier?

What does the buyer want to buy?

Whom does the buyer want to buy the goods for?

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