【单选题】【消耗次数：1】
下面不属于网络安全服务的是_____。
①
访问控制技术
②
数据加密技术
③
身份认证技术
④
数据一致性技术
参考答案：
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采用公用/私有密钥加密技术，（ ）
①
私有密钥加密的文件不能用公用密钥解密
②
公用密钥加密的文件不能用私有密钥解密
③
公用密钥和私有密钥相互关联
④
公用密钥和私有密钥不相互关联
【单选题】
采用公用/私有密钥加密技术，（ ）
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私有密钥加密的文件不能用公用密钥解密
②
公用密钥加密的文件不能用私有密钥解密
③
公用密钥和私有密钥相互关联
④
公用密钥和私有密钥不相互关联
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A: Is it time for us to set off now? B: [填空]. We’ll have to wait for one more hour.
①
Certainly, it is
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Thats all right
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Sorry, I am afraid not
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Sorry,its too long
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A: We had a trip to China this summer. B: [填空] A: Yes, we did. In fact, we even encountered a lion.
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I guess you did.
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I bet you had a great time.
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Im all yours
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A: When does the next train for London leave? B: Theres one leaving at 8 oclock. A: [填空]
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Are you sure?
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OK. I dont want to be late.
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Thanks. Could you wait for me?
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Id like one ticket, please.
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A: Thank you for inviting me to your birthday party. B: [填空].
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Dont be so polite
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Dont use thanks
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A: You look a little pale. Are you OK? B: [填空], I feel terrible.
①
To tell you the truth
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③
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④
To sum up
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A: What is an earthquake like? B: [填空].
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Very interested
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