思科认证考试

Before a Diffie-Hellman exchange may begin， the two parties involved must agree on what？（）A、Two secret keysB、Two nonsecret keysC、Two secret numbersD、Two nonsecret numbers

题目

Before a Diffie-Hellman exchange may begin， the two parties involved must agree on what？（）

  • A、Two secret keys
  • B、Two nonsecret keys
  • C、Two secret numbers
  • D、Two nonsecret numbers
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相似问题和答案

第1题：

______ such a wonderful novel.

A. Never have I before read

B. Never have read I before

C. Never before have I read

D. Never had I before read


参考答案：A

第2题：

[A] before

[B] by

[C] with

[D] round


正确答案：D
39.D根据后面的“to finissh the job as quickly as possible”可知人们想尽 2010年9月笔试真卷参考答案及精析第3页（共12页）快完成这项工作，由此可推知此处想要表达的是“抓紧时间工作”，work round the clock为固定搭配，表示“全天候工作、没日没夜地工作”，故选D。

第3题：

— Excuse me, when is the next flight from London due to arrive? — _________

A.In half an hour.

B.An hour before.

C.Until the next one.

D.Before another one.


正确答案：A

第4题：

You will get the message ______.

A、not long after

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参考答案：C

第5题：

The real American literature began_____.( )

A.before the Civil War

B.after the Civil War

C.before the War of Independence

D.after the War of Independence


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第6题：

A yesterday

B. tomorrow

C. before the day

D. the day before


正确答案：D

    29．答案为D  此题测试句法和短语理解。填充处与句子时态有关。在英语中，站在今天的角度谈论的前一天为“yesterday”，从过去的某个时间起谈论的前一天为"the day before”，故选D为答案。

第7题：

—________________ , but I still have the feeling that it's not safe enough. —I couldn't agree more. That's why I only do street shopping.

A Paying online is much unsafe than before ;

B Paying online is less safer than before ;

C Paying online is much safer than before


参考答案：C

第8题：

Before lift up the patient with hoist, make sure . ()

A. the hoist and sling are in good condition

B. give explanation to the patient

C. practice the equipment before lifting

D. choose the right size for the patient


参考答案：ABCD

第9题：

ideally, lesson planning should be done at two levels: _______________.

A. before-class planning and after-class planning

B. before-class preparation and after-class feedback

C. before-class planning and after-class reflection

D. macro planning and micro planning


正确答案是:D

第10题：

The following diagram denotes dependency between two activities A and B,It says（）

A.B can’t start before A is finished

B.B can’t finish before A is finished

C.B can’t start before A starts

D.B can’t finish before A starts


正确答案：A
解析：下图表示的活动A与B的依赖关系可以描述为（）A、A结束前B不能开始B、A结束前B不能结束C、A开始前B不能开始D、A开始前B不能结束

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