根据句意及首字母或汉语提示完成句子。

1. In China, people usually s_____ hands when they meet for the first time.

2. The students are s_____ to wear their uniforms at school, aren't they?

3. You had better not k_____ the baby's mouth because she is ill.

4. —W_____ spoon is this?

    —It's Li Lei's.

5. —May I use the k_____ to cut the apple?    

    —Yes, please.

6. —Could you please eat some delicious food again?    

    —No, I am f_____ now.

7. Sometimes we can use some punctuation (标点) m_____ to express our emotions.

8. We should often _____ (实验)with our own ideas, so that we can improve our skills.

9. It's very important to use e-mail at the _____ (合适的) time.

10. I'm _____ (逐渐地) getting used to things.

关于PMS系统的“五大中心”的说法正确的是（）

A、标准中心主要进行基础码表数据的制定和维护，代表了整个电网生产管理的规范化和标准化的力度与水平

B、设备中心代表了整个电网生产管理的核心对象、基本出发点和最终目标，在五大中心框架中，设备中心为PMS的核心，所有的中心均为设备中心服务

C、计划任务中心是基层生产人员的主要工作平台

D、计划任务中心包括生产计划和工作任务数据，为运行工作中心提供任务来源

E、运行工作中心是整个电力生产业务的主线