微机系统与外部交换信息主要是通过()。 A.输入输出设备 B.键盘 C.光盘 D.内

题型:单项选择题

问题:

微机系统与外部交换信息主要是通过()。

A.输入输出设备

B.键盘

C.光盘

D.内存

考点:中国电信知识竞赛计算机应用基础计算机应用基础题库
题型:单项选择题

阅读理解。

     We do the shopping (购物) on Sundays. I often go to the supermarket (超市) with my mother on Sunday

morning in a car. Father likes red apples very much. So we buy some red apples for him. Mother likes yellow

bananas. The oranges are very nice. Mother buys some for me. I like oranges very much.

     There are many vegetables. They are very nice. We buy some tomatoes and carrots. After shopping, we

have some milk, some bread and some ice-cream. And then we go back home.

1. Who likes apples very much?

A. Mother

B. Father

C. I

D. I don't know 

2. What does mother like?

A. oranges

B. apples

C. bananas

D. pears

3. Mother buys some oranges for _____.

A. us

B. me

C. her

D. him 

4. After shopping, ______.

A. we go back home

B. we have some food

C. we have some apples

D. We only (仅仅) have some ice cream.

题型:单项选择题

如何测试光电设备地电源?

题型:单项选择题

通常首次检定费和周期检定费应分别计人( )。

A.安装成本和维护成本

B.基本成本和安装成本

C.维护成本和安装成本

D.基本成本和维护成本

题型:单项选择题

220kV电压等级等电位作业中的最小组合间隙距离为()m。

A.1.8

B.2.1

C.2.4

题型:单项选择题

对于已经建好的表,索引可以帮助用户对其中的数据进行______和排序,以便加快检索数据的速度。

A.编辑
B.筛选
C.修改
D.删除

更多题库