以下药物结构中含有磺酰胺基的是A．磺胺甲噁唑 B．氢氯噻嗪 C．呋塞米 D．呋喃妥因

阅读理解。

     Many children act in TV shows. They work several hours every day, so they cannot go to a regular

school. How do they get an education?

     In Hollywood, where many TV shows are made, about forty teachers give lessons for the children in

the shows. They teach wherever their pupils are working.

     They teacher's job is very important. She is responsible for making sure that the child works only the

permitted hours each week. She is also responsible for making sure that the child learns the required

subjects. She makes sure, too, that the child gets enough rest and play, along with his education.

     Child actors are required to attend classes twenty hours each week. California law says that they must

be taught from September to the middle of June. If they do not get good marks in school, they are not

permitted to continue working in TV shows.

     TV children are usually good pupils, and most of their teachers like this special kind of work. Their

classes are held in many interesting places. Sometimes the "classroom" is a Mississippi riverboat. Sometimes

it is the inside of a spaceship. Often the pupils become famous stars.

1. Which of the following statements expresses one of the main ideas given in this selection?

A. We must realize that television is the most powerful force in the education of children today.

B. Unfortunately children who act in TV shows cannot be educated because their work does not permit

    them to attend school.

C. Special arrangements are made for giving a good education to children during the weeks of their

    employment as TV actors.

D. Most of the teachers like their work.

2. Where are most TV shows made?

A. In Washington D.C.

B. In Mississippi

C. In New York

D. In California

3. What information about TV teachers does this selection provide?

A. Some of them are paid twice as much as the teachers in regular schools.

B. Most of them enjoy their work.

C. Many of them hope to become TV actors and actresses.

D. Few of them come from foreign countries.

4. A child is not permitted to continue in a TV show _____.

A. if his teacher says that his school work is unsatisfactory

B. if his work takes him to places like spaceships and riverboats, where there are no classrooms

C. if he is working during the winter months (September to June)

D. if he is absent from class more than once

集体劳动合同签订后，在7日内由企业或事业组织一方将合同报送劳动行政部门登记、审查、备案，劳动行政部门自收到集体合同文本之日起30日内未提出异议的，集体合同即行生效。 ( )

标志西欧奴隶社会历史结束的事件是 [ ]

A、斯巴达克起义

B、东罗马帝国灭亡

C、西罗马帝国灭亡

D、罗马帝国分裂

气化炉锁斗系统在排渣前，用什么（）进行卸压。

A、XV1313

B、XV1314

C、XV1315

D、XV1317

设计弯曲工件时，在使用要求允许下，工件的弯曲半径应（）最小弯曲半径。

A.小于

B.等于

C.大于