根据句意及词首字母提示完成单词.

1. If you have some questions, please s              them to the Lnaguage Doctor.

2. Many students want to i             their English but don't   know  what to do .

3. -What time is it ?

    -Sorry .I don't have a w             

4. You can g            the meaning of the new words when you are reading. You needn't look up every

    word in the dictionary.

5. Wang Li always feels s             when she meets strangers(陌生人).

6. Do you have any good questions to start a c             when you talk to a foreign teacher?

7. Look!How happy the little girl is ! She is   s                

8. We should r            all the new words before this weekend.

(1) 是在一个公司发给另一个公司的报文上，连同报文和签名一起做一个摘要的方法。

目前的产品能够做到的最高安全级别是 (2) 级。

仔细阅读日志属于 (3) 的内容。

在网络安全策略中，属于半主动网络安全策略的方法是 (4) 。

在故障报告中，设备运行出现错误状态用 (5) 表示。

3（）

A．数据加密

B．构筑防火墙

C．补丁程序

D．系统审计