影响社会变迁的因素有（）。A.环境 B.人口 C.社会制度 D.社会价值观念、生活方

修改下列公文的标题或公文正文的词句：

谁也不会否认，债转股是对国有企业改革的重大举措。

久卧伤（）

A．骨

B．筋

C．气

D．血

E．脉

Learners of English, especially self-taught learners may have trouble in understanding the speeches made by native speakers. The following ways might help improve your listening skills.

First of all, do things step by step. It is not good to listen to something beyond your level. Better choose a suitable course and start with the first book. Don’t go on to the second book until you are sure you understand the first one.

Secondly, keep studying one course. Don’t change books often. Never let your attention be attracted by another course just because it seems to be more popular.

Thirdly, listen to the English news over the radio from time to time. Better look through the news stories in Chinese-language newspapers first. That will make it easier for you to understand the English news on the radio.

Fourthly, if you have time, listen to some interesting stories in Special English from the V.O.A or other listening materials of the same level as those of your textbook.

76. 小题1:What does the passage mainly talk about?

A．How to speak English correctly.

B．How to read fast.

C．How to improve your writing skills.

D．How to improve your listening skills.77. 小题2:What does the underlined part “beyond your level” mean?

A．Easy for you.

B．Too difficult for you.

C．Just all right for you.

D．Neither difficult nor easy for you.78. 小题3:What should you do if you want to understand the English news on the radio?

A. Practise speaking very often.    

B. Read the news stories in Chinese-language newspapers first.

C. Listen to some interesting stories in Special English from the V,O.A.

D. Ask others to explain it to you.

79. 小题4:How many pieces of advice does the writer give?

A．Four

B．Three.

C．Two.

D．Many.80. 小题5:Which of the following is NOT right?

A．English learners may have difficulty in understanding native English.

B．To improve our listening skills, we should choose popular courses from time to time.

C．Chinese-language newspapers are good for us to understand the English news on the radio..

D．We can only improve our listening skills step by step.

关系模式的候选关键字可以有1个或多个，主关键字有______。

A) O个
B) 1个
C) 1个或多个
D) 多个

下列不属于网络营销的特点的是

A．跨时空

B．交互式

C．整合性

D．大众化