题目内容

信息认证内容不包括( )

A. 信息的编码方式
B. 信息的来源
C. 信息的序号和时间
D. 信息的完整性

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以下关于算法“DES”说法错误的是:( )

A. 密钥密码加密算法
B. 对称密钥加密算法
C. 公钥密钥加密算法
D. 单钥密码加密算法

在公钥密码体系中,加密和解密是使用( )的密钥。

A. 相同
B. 不同
C. 私人
D. 公开

用于开放网络进行信用卡电子支付的安全协议是( )。

A. ‏SET
B. TCP/IP
C. HTTPS
D. SSL

对话填空:(选择恰当的句子或表达法填空,只填序号。)Dialogue 1M: To tell the truth, it's impossible for us to1based on your offer. There iscompetition from America. They could give us offers about 10% lower than yours.W: Taking everything into consideration,2.M: Only because we have cooperated for a long time, we place the order for rice with you.W:To be honest, we3at this price.M: We only hope that your price is comparable to others'. It's reasonable, isn't it?W: Alright, we can cut our price by 3% in order tobe in line with your market. It's absolutely4.M: OK.5.A. our offer is reasonableB.our bottom lineC.close the dealD. Let's call it a deal.E. make little profit

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