下列不是气管异物常见症状的是（） A.咳嗽 B.喘鸣 C.呼吸困难 D.咯血 E.发

川乌主要含有

A．动物体的某一部分
B．动物体某些部分的加工品
C．动物的排泄物
D．动物除去内脏的干燥体
E．动物的干燥全体

第三部分：阅读理解（共20小题，每小题1分，满分20分）

I like watching TV very much for I think it has many advantages（长处）. First of all, watching TV is a good rest. After a day of hard work, we need a good rest. Watching TV can make our mind and body not tired any more because of the pleasant music and TV plays.

Besides, watching TV is entertaining（娱乐消遣）. There are many kinds of entertainment, such as sports activities（活动）, singing and dancing concerts, plays and films all over the world at every time. It's not possible for us to go to every place to enjoy all the activities within a short time. We need at least over ten hours to fly from New York to Paris, a week by train from Beijing to Moscow and an hour to drive from Queens District to Manhattan District. But within just one second, TV can bring us from an NBA game in New York to a fashion show in Paris by changing the channels.

Most important, watching TV is educational（教育）. Our children can learn every kinds of subjects through the educational programmes and the special reports on TV, and it's easy for them to learn Chinese from a Chinese teacher in Beijing and to learn Russian lessons from a Russian teacher in Moscow. Even we can learn how to behave well from the TV plays. Meanwhile, a teacher can teach millions of students without a huge classroom.

56. The best title for the text is_______ .

　 A. TV brings good rest         B. The advantages of watching TV

C. Today's TV programmes      D. How to use TV in schools

57. Which of the following is true according to the text?

　 A. The writer likes watching TV than others.

B. There are different kinds of programmes on TV in China and Russia.

C. There are many kinds of entertainment programmes on TV.

D. It's not easy to drive from Manhattan to Queens District.

58. According to the writer what is the most important reason for watching TV?

　 A. We can learn something useful.    B. Watching TV is a good rest.

C. We can see whatever we like.     D. We can enjoy ourselves.

59. In the second paragraph the writer wants to show_______.

A. TV brings different parts of world in front of us

B. TV stations send programmes quickly     

C. how to go to different places and enjoy ourselves

D. how long it will take a man to drive to different places

60. The writer writes the text to_______

　A. persuade us to buy a TV            B. tell her ideas about TV

C. introduce some TV programmes      D. tell us how to learn from TV

《汽车加速行驶车外噪声限值及测量方法》（GB1495—2002）中，车外噪声测量对传声器的位置是如何规定的？

简述资产阶级革命派和改良派的辩论所暴露出的革命派在思想理论方面的弱点

河床沉积以（）为主，有时也有砾岩及砂质砾岩。

A、粘土岩

B、变质岩

C、沉积岩

D、砂岩