--- ____?一I’ve never been there but I hope to go there in the future.A.Where are you going for holidayB.Have you been to AmericaC.What did you do last week

题目

--- ____?

一I’ve never been there but I hope to go there in the future.

A.Where are you going for holiday

B.Have you been to America

C.What did you do last week

相似考题

1.I, my, will, true, come, hope, dream__________________________________________________________________________.

2.乳牙萌出的顺序为A．I→Ⅱ→Ⅳ→Ⅲ→VB．I→Ⅱ→Ⅲ→]V→VC．I→Ⅲ→Ⅱ→Ⅳ→VD．Ⅱ→I→Ⅲ→Ⅳ→VE．Ⅱ→I→Ⅳ→Ⅲ→V

3.2.I _________to visit Guilin and I_________ you to go with me．A． wish ; hopeB． hope; wishC． hope; wish forD． wish; hope that

4.Where ________ you ________?A.are/beB.have/beC.is/beD.have/been

更多“－－－ ____?一I’ve never been there but I hope to go there in the future.A.Where are you g ”相关问题

  • 第1题：

    My sister has_____ been to the Summer Palace. I ’m going to take her there.

    A.ever

    B.sometime

    C.never


    参考答案：C

  • 第2题：

    If you _______ out to play, I _______ along with you.

    A.were, will go

    B.go, have been gone

    C.go, will go

    D.are going, am going


    参考答案：C

  • 第3题：

    What can I do for you, Madam?

    ()500yuan in cash to my son in Beijing University.

    A、 You’d better remit

    B、 I'd like to remit

    C、 I'd rather remit


    参考答案：B

  • 第4题：

    一I'm very tired. I've please just finished work .

    --- ____.

    A. Well，you'd better go home and have a good rest

    B. Oh，great! Congratulations

    C.Ok,I'11 give it to you tomorrow.


    参考答案：A

  • 第5题：

    Kathy, I’d like you to meet Maggie Jacobs.

    (). Maggie. You’re doing a great job.

    A、 I‘m pleased to meet you

    B、 It’s great to see you again

    C、 I' m happy to meet you too


    参考答案：C

  • 第6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：

     

     

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