在Word 2002中,如果加上分栏版式后又想去掉,可使用“编辑”菜单中的()命令。

题型:单项选择题

问题:

在Word 2002中,如果加上分栏版式后又想去掉,可使用“编辑”菜单中的()命令。

A、查找

B、替换

C、重复

D、撤消

考点:通信电子计算机技能考试计算机文字录入处理员(中级)计算机文字录入处理员(中级)题库
题型:单项选择题

阅读理解。

     In the early 1990s, the word "Internet" was strange to most people. But today, Internet has become a

useful tool for people all over the world. Maybe Internet has been the greatest invention in the field of

communication in the history of mankind (人类). 

     Communicating with others on the Internet is much faster. We can chat with a person who is sitting

in the other part of the world. We can e-mail our friends and they can read the e-mails within a minute.

      Giving all kinds of information is probably the biggest advantage of the Internet. We can use search

engines to find the information we need. Just type in a keyword or keywords and the search engine will

give us a list of suitable websites to look at.

     We can enjoy a lot on the Internet by downloading games, visiting chat rooms or surfing (浏览)

websites. There are some games for free. We can meet new and interesting people in the chat now. We

can also listen to music and see films.

      Now, there is a lot of service on the Internet such as online banking, job finding and ticket buying. We

can also do shopping and find nearly all kinds of goods. Sometimes we can find something that is quite

good but very cheap.

1. How many main advantages of the Internet are talked about in the passage? [ ]

A. Three.

B. Four.

C. Five.

D. Six.

2. What fact doesn't the passage provide?[ ]

A. We can find almost anything we want to know on the Internet.

B. Some games on the Internet are free.

C. We can buy most things we need on the Internet.

D. Goods on the Internet are more expensive than those in real shops.

3. Which title best gives the main idea of the passage? [ ]

A. Online Shopping.

B. Exchanging Information on the Internet.

C. The Advantages of the Internet.

D. Surfing the Websites on the Internet.

题型:单项选择题

如图所示,电子源每秒钟发射2.5×1013个电子,电子以v0=8.0×106m/s的速度穿过P板上A孔,从M、N两平行板正中央进入两板间,速度方向平行于板M且垂直于两板间的匀强磁场,两极板M、N间电压始终为UMN=80.0V,两板距离d=1.00×10-3m,电子在板M、N间做匀速直线运动后进入由C、D两平行板组成的已充电的电容器中,电容器电容为8.0×10-8F,电子打到D板后就留在D板上.在t1=0时刻,D板电势较C板的电势高818V,在t2=T时刻,开始有电子打到M板上,已知电子质量m=9.1×10-31kg、电荷量e=1.6×10-19C,两板C、P均接地,电子间不会发生碰撞(忽略电子所受的重力).求:

(1)两极板M、N间匀强磁场的磁感应强度B;

(2)T时刻打到M板上每个电子的动能EK(以eV为单位);

(3)最终到达D板的电子总数n;

(4)在t3=

3
5
T时刻,每个电子作用到D板的冲量I.

题型:单项选择题

机械通气的原则是什么?

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工程设计成果完成后,由发包人负责组织鉴定、验收和向( )报批。

A.设计部门
B.设计审批部门
C.监理公司
D.审图机构

题型:单项选择题

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