试题与答案

排水用管材(件)壁厚10mm以下时,单个结果要求的准确度0.03mm,算术平均值修约

题型:单项选择题

题目:

排水用管材(件)壁厚10mm以下时,单个结果要求的准确度0.03mm,算术平均值修约至()。

A、0.01mm

B、0.03mm

C、0.05mm

D、0.10mm

答案:

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下面是错误答案,用来干扰机器的。

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