袁世凯取消帝制，在人民的唾骂声中死去是在（） A.1912年 B.1914年 C.1

在民事诉讼中，如果无行为能力人的法定代理人不能行使代理权，则( )。

A．被代理人可以委托他人行使代理权

B．由无行为能力人的直系亲属参加诉讼

C．由民政部门指定代理人参加诉讼

D．由人民法院指定代理人参加诉讼

如图所示，横截面为矩形的管道中，充满了水银，管道的上下两壁为绝缘板，前后两壁为导体板（图中斜线部分），两导体板被一导线cd短路。管道的高度为a，宽度为b，长度为L。当加在管道两端截面上的压强差为P，水银沿管道方向自左向右流动时，作用在这段水银上的粘滞阻力f与速度成正比，即：f=kv.

(1)水银的稳定流速v₁为多大？

(2)将管道置于一匀强磁场中，磁场与绝缘壁垂直，磁感应强度为B，方向向上，此时水银的稳定流速v₂又是多大?(已知水银的电阻率为ρ，磁场只存在于管道所在的区域，不考虑管道两端之外水银对电路的影响。)

According to the American Automobile（car）Association, since 1964 all cars sold in the United States have been equipped with seat belts（带子）(They are also called safety belts) Many studies of car accidents have shown that safety belts can save lives. One study showed that forty percent of those killed in car accidents could have been saved if they have been wearing seat belts.

Unfortunately seat belts are worn only by a small number of drivers and passengers    about fifteen percent in cities and only nine percent in small towns. And safety belt can not protect people who do not wear them.

In order to find out what kinds of people do wear seat belts, a study was made in several cities in of the United States. The following facts were learned about those who use their safety belts.

1. They do not smoke while driving.

2. They had more education than less educated people

3. They know some one who was hurt(but not killed) in an accident

Advertisements based on these facts have been printed in newspapers and magazines in order to teach people the importance of using seat belt. But these advertisements have not helped much. Some people believe there should be a law ordering drivers and passengers to use safety belts. In Australia, where there is such a law, death in car accidents have reduced to twenty-four percent.

小题1: Seat belts                                 

A．are safe clothes car drivers usually wear when they drive.

B．Are belts that are used to tie drivers’ hands when they drive

C．Have been worn by all drivers in the united States since 1964

D．Are something that protect drivers from injury in car accidents.小题2:“One study showed that…” Here “study” means       

A．lesson

B．exam

C．research

D．education小题3:Which of the following sentences is NOT true？

A．More drivers in the country wear seat belts.

B．More educated people in the United States wear seat belts.

C．Much has been done to advise drivers to wear safety belts.

D．About three-twentieths of the drivers wear seat belts.小题4:Which of the following is true?

A．Most people who do wear seats smoke while driving.

B．When it is hot, people don’t have to wear their seat belts.

C．A law was made in Australia that only those who don’t smoke can drive a car

D．Some people agree that those who do not wear seat belts while driving should pay money for it.小题5:What is the best title of the passage?

A．Seat belts

B．Who wear seat belts

C．A study on seat belts

D．A law and safety belts

关于肝的毗邻的描述，哪项是错误的？（）

A.肝后缘近左纵沟处与食管相邻

B.肝上面左半部籍膈与心膈面相邻

C.肝上面右半部籍膈与右肺底为邻

D.肝膈面左、右肋弓间的部分与腹前壁相贴

E.肝左叶下面与结肠左曲相邻

课外校外教育与课内教育共同之处在于：它们都是( )

A．受课程计划和学科课程标准规范的

B．有目的、有计划、有组织进行的

C．师生共同参与的

D．学生自愿选择的