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32. —Shall I tell Bob the news?—No,you _________.I've told him already.A. shouldn’tB. wouldn’tC. mustn’tD. needn't

题目

32. —Shall I tell Bob the news?

—No,you _________.I've told him already.

A. shouldn’t

B. wouldn’t

C. mustn’t

D. needn't


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更多“32. —Shall I tell Bob the news?—No,you _________.I've told him already.A. shouldn’tB. w ”相关问题
  • 第1题:

    oh,I'm not feeling well in the stomach. i____so much fried chicken just now

    A)ashouldn't eat

    B)mustn't have eaten

    C)shouldn't have eaten

    D)mustn't eat


    参考答案:C

  • 第2题:

    Jerry: I've been back from a business trip.

    Bob: ______

    A、It's very nice of you.

    B、How's everything going?

    C、You're kind to say so.

    D、I'd love to.


    参考答案:B

  • 第3题:

    B 宽度优先(种子染色法)

    5.关键路径

    几个定义: 顶点1为源点,n为汇点。

    a. 顶点事件最早发生时间Ve[j], Ve [j] = max{ Ve [j] + w[I,j] },其中Ve (1) = 0;

    b. 顶点事件最晚发生时间 Vl[j], Vl [j] = min{ Vl[j] – w[I,j] },其中 Vl(n) = Ve(n);

    c. 边活动最早开始时间 Ee[I], 若边I由<j,k>表示,则Ee[I] = Ve[j];

    d. 边活动最晚开始时间 El[I], 若边I由<j,k>表示,则El[I] = Vl[k] – w[j,k];

    若 Ee[j] = El[j] ,则活动j为关键活动,由关键活动组成的路径为关键路径。

    求解方法:

    a. 从源点起topsort,判断是否有回路并计算Ve;


    正确答案:

     

     

  • 第4题:

    Ted: How are you, Bob ?

    Bob: _____________.

    A、How are you?

    B、I'm fine.Thank you.

    C、How do you do?

    D、Nice to meet you.


    参考答案:B

  • 第5题:

    If I had come here yesterday, I _______him.

    A. would have seen

    B. would see

    C. have seen

    D. saw


    正确答案:A