因搁浅事故造成船舶停航在30d以上的，确定为( )。A．重大事故B．大事故C．一般

We live in the computer age. People use computers to do much of their work. But few people know how to look after them. Remember the following when you use your computer:

1.Keep your computer in a cool, dry room. Too much or too little heat is bad for computers. Damp(潮湿) is also bad for them.

2.Do not let people smoke near your computer. Smoke of all kinds is very bad for many parts of a computer.

3.Do not eat or drink when you are near your computer. Pieces of food and a little water in the keyboard are also bad for a computer.

4.Keep your screen clean and do not have it too bright. They are bad for your eyes. Make sure the screen is not too far from or too near your eyes. Some people use different glasses to protect their eyes when they use a computer.

小题1:Computers can          people to do a lot of work.

A．use

B．help

C．make

D．take小题2:Few people know how to          their computers.

A．look at

B．try out

C．look for

D．take care of小题3:A computer works well at a temperature of         .

A．0℃

B．-5℃

C．20℃

D．35℃小题4:Smoke is not good for many parts of a computer, is it?

A．Yes,it is.

B．No,it isn't.

C．Yes,a little.

D．Not at all.小题5:A dirty screen or a very bright screen is    for your eyes.

A．bad

B．good

C．useful

D．helpful

读地球光照示意图（阴影区域为夜半球），回答下列问题．

（1）在N附近的弧线上补绘箭头，表示地球自转的方向．

（2）A、B两点中______点先迎来黎明；C、D两点中，______点先进入黑夜．昼夜交替的周期为______．

（3）A点位于B点的______方向．A、B两点所在纬线名称为______．

（4）北极圈内出现了______（极昼、极夜）现象．北极圈是北寒带和______带的分界线。

信息化规划的战略目标体现在（）

A.业务匹配

B.竞争优势

C.管理资源

D.技术架构

E.战略规划

大力投资公共基础设施建设体现了政府的______职能。

A．维护
B．扶助
C．管制
D．服务
E．发展

医院新生儿科空气的消毒（）

A.NICU要求通风换气，可以采用层流洁净技术

B.NICU要求通风换气，可以采用自然通风或排气扇换气

C.地面、床头柜、工作台每天用清洁消毒

D.医院应定期监测清洁消毒效果

E.NICU要求通风换气，但不可采用自然通风或排气扇换气