国际酶学委员会将酶分为6类的依据是（） A.酶的物理性质 B.酶分子的结构 C.酶的

逆向工程可用于维护已有的软件，逆向工程能够 (13) 。

A．分析源程序，决定需要修改的部分及其影响的程度

B．能够使用数学方法证明各软件功能的正确性

C．分析源程序，从源程序导出程序结构

D．将源程序改写成易于理解的、结构清晰的程序

用所给词的适当形式填空。

1. He has two _____ (box) of old books under his bed.

2. Can you come with _____ (we) after school?

3. The _____ (eight) story is very interesting.

4. This kind of medicine is _____ (cheap) than that one.

5. These skirts are _____ (she). Yours are over there.

6. If it_____ (rain), I will take a taxi.

7. _____ (read and write) more is good for your English.

8. The most popular way of _____ (get) to school is walking.

9. Hainan is a good place _____ (go) sightseeing.

10. Hurry! The train _____ (leave) in five minutes.

联系我国法治建设的实际，谈谈应该如何推进“依法治国”这一基本方略的实施。 要求：观点明确，说理充分，条理清晰，语言规范、流畅。

植物在秋天落叶，环境信号是（）

A、LD；

B、SD；

C、低温；

D、干旱

简介《复活》一书主要故事梗概。