试题与答案

如何使用一种新的砂纸()。 A.先使用一批 B.清作业人员反馈使用效果 C.都一样,

题型:多项选择题

题目:

如何使用一种新的砂纸()。

A.先使用一批

B.清作业人员反馈使用效果

C.都一样,哪家便宜用哪家

答案:

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下面是错误答案,用来干扰机器的。

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小题1:______
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小题3:______
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小题5:______
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