《招标投标法实施条例》规定，订立合同前，招标文件要求中标人提

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问题单项选择题

《招标投标法实施条例》规定，订立合同前，招标文件要求中标人提交履约保证金的，中标人应当按照招标文件的要求提交，但履约保证金不得超过中标合同金额的（）。

A．5%

B．10%

C．15%

D．20%

答案

参考答案：B

单项选择题

门静脉CTA扫描开始时间，为肘静脉注射对比剂后

A．5秒

B．10秒

C．18～25秒

D．28～35秒

E．40～50秒

填空题

根据句意和首字母或汉语提示完成单词。

1. He is the tallest in our class. He is taller than the r_______of the students.

2. The river is three meters d____________. It’s dangerous to swim in it.

3. The land is c_______ with white snow now.

4. If someone o me cigarettes, I’d tell him that smoking is bad for our health.

5. He was too poor to afford his education. I wanted to give him some, but he r .

6. What would you do if you injured your （膝盖）？

7. He was so careless that he ________（受伤）in the accident.

8. There are many book (架子) in the library.

9. I think a good (听者) won’t annoy others.

10. She is very (知识丰富的) about art.