20世纪初在接受西方冲突的同时，民歌也保存了自己的特色。

阅读理解。

                               Chinese team first lands on Antarctic icecap peak (南极冰盖最高点). 　

    A 12-man Chinese team landed on the Antarctic icecap peak on January 18. They are the first people to

reach the peak of Dome A (海穹A). It is 4,039 meters above sea level (海拔). 　

    The team built a station there to study the changes of the weather, get ice samples from 150 meters to 200

meters below, and do other studies. So far, the team has got nearly 100-meter long ice samples from a place

about 300 meters under the icecap peak. 　

    It is the first time that people have been able to get samples from the icecap peak in Antarctica and it is very

important for people to study the weather changes and environmental changes in this area (地区). 　

    The Chinese scientists have also built a weather study system (系统) at the peak. The system can send out

information about temperature, how strong the wind is, and many other things about the weather. 　

     The Antarctic icecap makes up (组成) 70% of the earth's freshwater (淡水). By studying Dome A,

scientists can get the lowest temperature of the earth and other information about the world's weather changes.

We can't get this information from other places on the earth because Dome A is the best place for this kind of

studies. So it is very important to land on the peak of Dome A.

1. How many Chinese first landed on the Antarctic icecap peak? [ ]

A. 18. 　 　　　

B. 12. 　　　

C.150. 　　　　

D.200.

2. The team has got about 100-meter long ice samples _____. [ ]

A. from 150 meters to 200 meters below 　

B. from a place about 300 meters below 　　

C. from 200 meters to 250 meters below 　

D. from a place about 150 meters below

3. They built a weather study system to get _____. [ ]

A. the earth's freshwater　　　　　

B. ice samples from the peak 　　

C. information about the weather 　

D. the news about other countries

4. What does the underlined word "sample" mean? [ ]

A. 样本

B. 窟窿

C. 容量

D. 板块

5. From this passage, we can infer (推断): After the Chinese team landed on the Antarctic icecap peak, _____. [ ]

A. we can go there for holidays. 　

B. the world's weather must be better and better. 　　

C. the peak will be the best place for people to live in. 　　

D. our country will do better in the world's weather research.

下图是一幅残缺的中国古代“地方结构示意图”。请根据留存信息，判断该图反映的朝代是

A．唐代

B．宋代

C．元代

D．明代

新经济增长理论的主要意义有( )。

A．提出对经济持续增长有决定意义的是知识的积累和人力资本的积累

B．知识积累和人力资本使整个经济的规模收益递增

C．解释了技术进步与投资相互促进的机制

D．对发展中国家来说，促进技术进步具有很大的意义

E．在国际分工中，各国通过对知识和人力资本施加影响来取得和强化比较优势

电流可反向的两象限直流PWM调速系统稳态工作时，当输出电压的平均值小于电机反电势时，电机工作在（）象限。

A.1

B.2

C.3

D.4

点播短信需不需要另外交费呢？