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

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