材料损耗率的计算公式为( )。A．损耗量/净用量×100% B．净_爱下问搜题

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问题单项选择题

材料损耗率的计算公式为( )。

A．损耗量/净用量×100%

B．净用量/损耗量×100%

C．损耗量/总用量×100%

D．净用量/总用量×100%

答案

参考答案：A

改错题

单句改错。（每句均有一处错误）

1. They are very happy at Christmas Eve.
2. He put away his books, doesn't he?
3. What's the weather like in Beijing last year?
4. Let me to ask her to speak Chinese.
5. You'd better not to be late for c

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问答题简答题

谈谈港口物流企业的营销特点。