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【单选题】
密码分析者通过各种手段掌握了相当数量的明-对可供利用.这种密码分析方法是( )。
A.
唯密文攻击
B.
已知明文的攻击
C.
选择明文攻击
D.
自适应选择明文攻击
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参考答案:
举一反三
【单选题】( )是指造成人员死亡、伤害、职业病、财产损失或其他损失的意外事件。
A.
危险源
B.
事故
C.
事故隐患
D.
危险事件
【单选题】( )是指造成人员死亡、伤害、职业病、财产损失或其他损失的意外事件。
A.
危险源
B.
事故 c.事故隐患 D.危险事件
【单选题】下列不属于化妆原则的是()。
A.
自然
B.
浓艳
C.
得法
D.
协调
【判断题】危害是指造成人员伤害、职业病、财产损失、环境破坏的根源或状态。
A.
正确
B.
错误
【单选题】I zeroed in on the officer. (para. 20)
A.
I’m going to have a strong argument to silence the bank officer.
B.
I aimed a gun at the officer.
C.
I shoot the officer.
【单选题】Speaker A: Im sorry, officer. I wasnt paying attention. Speaker B: ______
A.
I think you have been driving faster than the speed limit. Please slow down.
B.
Listen. When you're speeding, you're taking your life, and very possibly someone else's life on your hands.
C.
Then, will you explain why you weren't paying attention to the speed limit?
D.
As a driver, you should keep an eye on all the road signs.
【单选题】Sorry, officer. I______at 80 miles but I didn't see any sign in the area telling people how fast fhey can drive.
A.
should not drive
B.
shouldn't have driven
C.
mustn't drive
D.
can't drive
【单选题】— I didn't know it a one-way street, officer. — ______. [     ]
A.
That's all right
B.
I don't believe you
C.
Sorry, but that's no excuse
D.
You don't say that
【单选题】投资者 n.
A.
invester
B.
investment
C.
investor
D.
invest
【判断题】LTI离散系统的频率响应随输出信号而变化。
A.
正确
B.
错误
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