离心泵是一种（）机械，它借助于泵的叶轮高速旋转，使充满在泵体内的液体在（）的作用下，

Television has a huge influence on our lives. It is one of the most important ways of getting information. People spend part of their spare time watching television, and much of what they learn comes from it.

What we see on TV—movies, news shows, sports shows, advertisements and so on have increased our knowledge and have changed the way we learn about the world today. However, not everything on TV is true.

Most of the viewers are children. Television sometimes is like a baby-sitter. It spends more time with children than parents do. But it keeps them in the living room away from healthy outdoor activities. They spend less time playing soccer or walking in the park or playing games in the yard.

Of course, there are some programs on TV that are good for children. But there are also some shows which are bad. Children should not watch unhealthy shows. Maybe we can’t change what is on TV, but we can choose what we watch. Do you agree?

小题1:Why is television sometimes like a baby-sitter?

A．Because television can take care of children.

B．Because children spend more time watching TV than staying with their parents.

C．Because television spends time looking after children.

D．Because television keeps children from going out.小题2:Which is not one of the good influences television has on our lives?

A．It stops children from attending healthy outdoor activities.

B．It provides a lot of information.

C．It changes people’s way of learning.

D．It increases people’s knowledge.小题3:We can learn from the passage that _________.

A．parents shouldn’t let children watch TV

B．We should believe everything on TV.

C．we can choose TV programmes

D．parents shouldn’t watch TV小题4: What’s the writer’s attitude(态度) towards television?

A．消极的

B．积极的

C．中立的

D．愤怒的小题5:The passage is mainly about ________.

A．children spend too much time watching TV

B．people spend their time on TV for information

C．TV programmes attract children

D．the great influence TV has on our lives

对粒细胞缺乏患者应实施（）

A.保护性隔离

B.空气传播的隔离

C.飞沫传播的隔离

D.接触传播的隔离

E.消化道传播隔离

男，18岁，右手背部深Ⅱ度烧伤10天，近一天出现乏力、头痛及张口困难，不恰当的诊治措施是（）。

A.手背部烧伤部位清创

B.TAT2万U静脉注射

C.腰穿脑脊液检查

D.白蛋白20g静脉注射

E.10%水合氯醛30ml保留灌肠

定期租船方式适用于（）

A、现货运输

B、货源、货流比较稳定的货物运输

C、货运量大的干散货或液体散装货的运输

D、财政优惠的货物运输

弃船时，如果可能，应尽量避免与海水接触，保持“干身”离开难船。（）