发动机配气机构中，气门间隙过大会造成（）。A.气缸漏气 B.进气不足 C.排气不干净

阅读理解。

     Books are our greatest friends. They tell us stories of every country in the world. They give us all kinds

of knowledge.

     Life is short. One can't know and see everything in the world. With the help of books, one is able to

know what happened (发生) thousands of years ago and what is happening in every part of the world now.

Books give us not only knowledge but also pleasure. Reading good books is the best way of spending our

free time. And many beautiful stories for children are interesting and full of wisdom (智慧).

     All the great men love books. Knowledge from books helps them to succeed (成功) because books are

source (源泉) of knowledge and knowledge is the source of success.

1.Which sentence is wrong?  [ ]

A. Books give people all kinds of knowledge.

B. Though life is not long, one can hear and see everything in the world.

C. People can know what happened in the world with the help of books.

D. Books are source of knowledge.

2. Many beautiful stories can make children _____. [ ]

A. happy and clever

B. unhappy and surprised

C. succeed and sad

D. get little knowledge

3. The passage tells us the best way to _____ is reading good books. [ ]

A. do well in our lessons

B. spend our free time

C. talk with others

D. make us happy

4. _____ love books. [ ]

A. All the children

B. All the great men

C. Everyone in the lab

D. Everyone from every part of the world

填入下列句子横线处的词语，最恰当的一组是       （   ）

①共和国的缔造者的在起草《宪法》和《独立宣言》时，曾向每一个美国人许下了诺言，

今天我们就是为了要求                诺言而汇集到我们国家的首都来的。

②唐诗、宋词是中国古代文学的辉煌乐章，阅读这些名篇佳作，可以从中          中

国古典文学的语言魅力，感受中国文化的风神韵味。

③社会的飞速发展真令我们眼花缭乱，           谁一觉睡了十年才醒来，        

会发现自己好像远古的来客，同身边的世界格格不入。

A．兑现领会不论/都

B．实践领会如果/就

C．兑现领略如果/就

D．实践领略不论/都

在正常使用条件下的下列钢筋混凝土结构中，何项对于层间最大位移与层高之比限制的要求最严格（）？

A.高度不大于50m的框架结构

B.高度为180m的剪力墙结构

C.高度为160m的框架一核心筒结构

D.高度为175m的筒中筒结构

上肢骨折固定后，手指苍白、青紫应采取（）。

A、给止痛药

B、给消炎药

C、松开夹板

城镇化的基本阶段中，( )阶段的显著特征是由于巨大的城乡差异，导致人口与产业等要素从乡村向城市单向集聚。

A．郊区化
B．逆城镇化
C．集聚城镇化
D．再城镇化