社会主义初级阶段是不可逾越的，这主要取决于( )A．市场经济的不可逾越性 B．生产

气管镜检查的方位标志是（）

A.气管分叉

B.声门裂

C.气管隆嵴

D.右主支气管

E.左主支气管

严禁在停风或在瓦斯超限区域内（）

A、放炮 

B、回收 

C、作业 

企业在进料加工对口合同登记备案时必须向海关递交必要的单证和其他相关资料。下列选项中， ( )不属于海关规定的其他相关资料。

A．加工企业营业执照

B．产品技术资料

C．委托加工协议

D．加工企业的人事管理制度

阅读理解。

     Parents whose children show a special interest in a sport feel very difficult to make a decision about their

children's careers. Should they allow their children to train to become top sportsmen and sportswomen? For

many children it means starting schoolwork very young. And going out with friends and other interests have

to take a second place. It's very difficult to explain to a young child why he or she has to train five hours a

day, even at the weekend, when most of his or her friends are playing.

     Another problem is of course money, In many countries money for training is available from government

for the very best young sportsmen and sportswomen. If this help can not be given, it means that it is the

parents who have to find the time and the money to support their child's development and sports clothes,

transport to competitions, special equipment, etc. All can be expensive.

     Many parents are worried that it is dangerous to start serious training in a sport at an early age. Some

doctors agree that young muscles may be damaged by training before they are properly developed.

Professional trainers, however, believe that it is only by training when young that you can reach the top as

successful sports person. It is clear that very few people do reach the top, and both parents and children

should be prepared for failure even after many years of training.

1. Where can we most probably find this passage?

A. An advertisement.

B. A diary.

C. A newspaper.

D. A notice board.

2. What does the underlined phrase "to take a second place" in the first paragraph mean?

A. To become less important

B. To put it at another place

C. To happen again

D. They are the most important of all the things

3. Which of the following statements is true according to the passage?

A. It's easy to make a decision when your children want to take up sports.

B. Most of the students may become top sports men after a long period of training.

C. Early training may damage young muscles.

D. It's not very expensive for parents to support their children's development in sports.

患有哪些疾病的婴儿不宜打预防针（）。

A、发热，体温超过37.5

B、接种部位皮肤有湿疹

C、患急性传染病或传染病愈后未满半个月

D、腹泻、每日大便次数超过4次以上不宜服用脊髓灰质炎疫苗