题目内容
Conversation 2M：Good morning．Can I help youW：Yes．I want a new (1)doorbell for my back door．M：Which one do you want—(2)Model 8, Model 9 or Model 10W：Which one is the bestM：I think (3)Model 8 is stronger and cheaper than the other two．W：How much is itM：It costs 5 dollars．W：Let me have a look．well, (3)it looks nice．I’ll take it．M：OK．Let me pack it for you．W：Here is the money．Thank you．M：You are welcome． Which model is not mentioned（）
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如果项目仍按目前状况继续发展，则该项目完工时将超出原成本预算多少万元请简要写出计算过程。
两个公司希望通过Internet：进行安全通信，保证从信息源到目的地之间的数据传输以密文形式出现，而且公司不希望由于在中间节点使用特殊的安全单元而增加开支，最合适的加密方式是 (2) ，使用的会话密钥算法应该是 (3) 。
Conversation 11-3M：What are you doing, MissW：I have to (1)get a part-time job．M：What jobs have you doneW：I’ve had (2)a lot of different jobs．I used to work in a large computer company．M：What did you do thereW：I used to be a computer operator．M：What can you do hereW：I can do anything．I have to make some money right away．M：Well, we are going to have (3)an opening next week．I’ll call you then．W：Thanks． What is the woman doing（）
网络地址和端口翻译(NAPT)用于 (43) ，这样做的好处是 (44) 。
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