在桌面上创建一个文件夹，步骤为：①在桌面上空白处右击；②输入

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问题单项选择题

在桌面上创建一个文件夹，步骤为：①在桌面上空白处右击；②输入新名字；③选择新建菜单中的文件夹菜单项；④按回车键。正确的操作步骤为（）

A、①②③

B、②③④

C、①②③④

D、①③②④

答案

参考答案：D

填空题

用括号中所给词的适当形式填空

1. John sometimes __________(watch) TV three or four times a week.

2. I want to eat __________(much) apples than Jim does.

3. Maria knew little Chinese, so she asked me __________(translate) the sentence into English.

4. -What's your favorite program?

-I'm not sure. I hardly ever __________(watch) TV because I have a lot of homework to do.

5. I had a headache, and my mother advised me __________(see) a doctor.

6. -How many __________(tooth) does the baby have now?

-Five.

7. Lucy is good at __________(sing).

8. __________(watch) TV too much is bad for our eyes.

9. Never __________(play) on the street. It's too dangerous.

10. Everyone in the world should keep the __________(balanced) of the nature.

填空题

对变频器调速系统的调试工作应遵循（）的一般规律。