( )是控制和管理计算机硬件和软件资源，合理地组织计算机流程_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题

( )是控制和管理计算机硬件和软件资源，合理地组织计算机流程以及方便用户的程序集合。

A．监控程序
B．操作系统
C．编译系统
D．应用程序

答案

参考答案：A

单项选择题

新生儿常见的口腔内改变不包括（）

A.溃疡

B.马牙

C.上皮珠

D.螳螂嘴

E.板牙

填空题

选词填空，每词限用一次。

sounds, plays, have, interesting, great, watch, bring take, let, boring, can, relaxing

1. Let's _______ them on TV.
2. Can you _______ your book here?
3. She _______ sports every day.
4. _______ us play tennis.
5. Please _______ these apples to your aunt.
6. It _______ boring.
7. Does your mother _______ a red ball?
8. _______ you play tennis?
9. The book is very _______. I like it.
10. Our music (音乐) class is _______.
11. Jim doesn't like math. It is _______.
12. Ed smith has a _______ sports collection.