男性，22岁，发热、少尿2天，不思饮食，B超示。肾稍增大，Cr20％mol／L，尿钠

Life in the twenty-first century will be very different from life today. Between then and now many changes will take place, but what will the changes be?

The population is growing fast. There will be many people in the world and most of them will live longer than people live now.

Computers will be much smaller and more useful, and there will be at least one in every home. And computer studies will be one of the important subjects in schools then.

People will work fewer hours than they do now and they will have more free time for sports, watching TV and travelling. Travelling will be much easier and cheaper. And many more people will go to other countries for holidays.

There will be changes in our food, too. Maybe no one will eat meat every day, instead they eat more fruit and vegetables. Maybe people will be healthier.

Work in the future will be different, too. Dangerous and hard work can be done by robots. Because of this, many people will not have enough work to do. This will be a problem.

小题1:There will be _________ in the future.

A．small population

B．few changes

C．more people

D．few people小题2:In the future the computer will be _________.

A．much bigger and few people will use it

B．much smaller and more useful

C．smaller and not many people will use it

D．bigger and a lot of people will use it小题3:In the future more people _________.

A．will go to other countries for holidays

B．will study at school

C．will go earlier

D．will work for many hours小题4:People will prefer _________ to _________ in the future.

A．meat and vegetables; fruit

B．meat; fruit and vegetables

C．fruit and meat; vegetables

D．fruit and vegetables; meat小题5:The robots will _________ in the future.

A．do the dangerous work

B．do all the work

C．do only housework

D．do the easy work for people

下列说法或操作正确的是______

A．做过碘升华的烧杯和圆底烧瓶可以用四氯化碳或氢氧化钠溶液洗涤

B．做实验时可用手直接拿取金属钠

C．用托盘天平称量50.56gKCl

D．用煤油可以从饱和碘水中萃取碘

E．让一束光通过胶体，从垂直于光线的方向可以看到一条光亮的“通路“

F．从含有少量氯化钠的硝酸钾溶液中提取硝酸钾可用结晶的方法

G．用淀粉碘化钾试纸去检验溶液中是否含有氧化性物质，正确操作是先用蒸馏水润湿试    纸，将其粘在玻璃棒一端，然后将试纸伸入溶液中，看试纸颜色是否变蓝．

分布式数据有多种形式，在下列形式中是外围计算机存储数据的是______。

A．复制数据

B．子集数据

C．重组数据

D．划分数据

蜂群冬季管理应注意哪些方面？

雨淞