在估算外购原材料和燃料动力费时，不需要的基础数据是( )。A

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问题单项选择题

在估算外购原材料和燃料动力费时，不需要的基础数据是( )。

A．外购原材料和燃料动力费

B．外购汇率

C．适用的增值税率

D．选定价格体系下的预测价格

答案

参考答案：B

填空题

用词的正确形式填空。

1. I have been (collect) stamps for five years.

2. You shouldn't (argue) with your classmates.

3. When he was very young, he took great more (interest) in science.

4. It was raining when the plane (land) in London.

5. (predict) the future can be difficult.

6. Could you please (not fight) with your classmates?

7. The girl was (shop) when she saw a car accident.

8. Miss Gao said (polite) "How do you do".

9. My father made a living by (sell) toys when he was young.

10. It's bad manner to ask (person) questions.

填空题

与其它振荡器相比，负阻正弦波振荡器的工作频率（）。