题目内容

This company produces a large range of domestic and office furniture, and we are interested in using a number of products from your current range in the manufacture of our goods. As we are about to expand, our export operation, it is essential that our suppliers be both competitive in terms of price, and extremely reliable.

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Questions 11 to 18 are based on the conversation you have just heard.

A. They are not beautiful at all.
B. They are quite comfortable.
C. They are too expensive.
D. They deserve more money.

Questions 11 to 18 are based on the conversation you have just heard.

A. He didn’t go to the interview.
B. He succeeded in the interview.
C. He forgot about the interview.
D. He was too nervous in the interview.

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对照ISO/OSI参考模型各个层中的网络安全服务，在传输层主要解决进程到进程间的加密，最常见的传输层安全技术有 (1) ；为了将低层安全服务进行抽象和屏蔽，最有效的一类做法是可以在传输层和应用层之间建立中间件层次实现通用的安全服务功能，通过定义统一的安全服务接口向应用层提供 (2) 安全服务。在数据链路层，可以采用 (3) 进行链路加密；在网络层可以采用 (4) 来处理信息内外网络边界流动和建立透明的安全加密信道；在物理层可以采用 (5) 加强通信线路的安全。 4（）

A. 防窃听技术
B. 防火墙技术
C. 防病毒技术
D. IPsec

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Questions 11 to 18 are based on the conversation you have just heard.

Ask someone to help the man.
B. Give the man the note for his reference.
C. Lend the man her pencil and paper.
D. Feel sorry that she can’t help the man.

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