水污染的概念、危害、适用范围？

阅读理解。

     We all maximize (扩大) the meaning of  "cool". You can use it instead of many words such as "new"

or "surprising". Here's an interesting story we can use to show the way the word is used. A teacher asked

her students to write about the waterfall (瀑布) they had visited. On one student's paper was Just the one

sentence, "It's so cool. Maybe he thought it was the best way to show what he saw and felt.

     But the story also shows a scarcity (缺乏) of words. Without "cool", some people have no words to

show the same meaning. So it is quite important to keep some credibility (可信性).

     Can you think of many other words that make your life as colourful as the word "cool"?  I can. And I

think they are also very cool.

1. We know that the word "cool" has had _____. [ ]

A. only one meaning

B. no meanings

C. many different meanings

D. the same meaning

2. In the passage, the word "express" means "_____". [ ]

A. see

B. show

C. know

D. feel

3. If you are _____ something, you may say, "It's cool." [ ]

A. interested in

B. angry about

C. afraid of

D. unhappy with

“用笔在心，心正则笔正”是下列哪位书法家的话[ ]

A、王羲之

B、颜真卿

C、柳公权

D、米芾

长骨干骨折的临床愈合一般需要

A．3周

B．4周

C．5周

D．6周

E．8～12周

我国著名科学家钱学森在给朋友的信中曾这样写道：“我近30年来一直在学习马克思主义哲学，并总是试图用马克思主义哲学指导我的工作。马克思主义哲学是智慧的源泉。”自然科学家学习马克思主义哲学，是因为（）

A.马克思主义哲学是科学的科学

B.马克思主义哲学能指导具体科学的研究

C.马克思主义哲学能解决一切问题

D.马克思主义哲学能为自然科学的研究提供正确的具体方法

可能属于国家所有，也可能属于集体所有的土地包括（）。

A.城市土地

B.农村土地

C.城市郊区土地

D.宅基地