通信基站空调系统应能按要求自动调节室内（），并能长期稳定工作。有可靠的报警和保护功能

阅读短文，判断正(T)误(F)。

      Computers are useful machines. They can help people a lot in their daily life. For example, they can help

people to save much time to do much work and they can help people to work out many problems. Our country

asks everyone to learn to use computers except old people .

      Today more and more families own computers. Parents buy computers for their children .They hope

computers can help them improve their studies. Yet many of their children use computers to play games, to

watch videos or to sing, so compouters cannot help children to study but make them fall behind. So computers

are locked in boxes by some parents.

      In some other countries, even some sicentists also hate compouters. They say computers let millions of

people lose their jobs or bring them a lot of trouble. Will computers really bring trouble to people or can they

bring people happiness?

      It will be decided by today's students themselves.

( ) 1. Computers can help people do lots of work, so they'll take the place of humans.

( ) 2. Generally speaking, young people are more interested in learning and using computers.

(     ) 3. Some parents buy computers for their children in order to play computer games.

(     ) 4. In some countries, computers can make people lose their jobs.

( ) 5. How to use computers properly will be decided by today's students themselves.

吐蕃是今天哪个少数民族的祖先？（  ）

A．满族

B．维吾尔族

C．回族

D．藏族

施肥制度 fertilization system

《文心雕龙》为作文论文制定了情、风、事、义、体、文的辨别法则，即（）。

PANELVIEW 1400E的组态软件各个画面切换是通过（）即可方便地切换到其它画面

A、键盘操作

B、鼠标操作

C、开关

D、用手触摸各画面切换按钮位置