This is the first time I've attended such a big party. That is why I am not________.A. at easyB. with easeC. at easeD. at loose

题目
This is the first time I've attended such a big party. That is why I am not________.

A. at easy

B. with ease

C. at ease

D. at loose

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1.33. --- I’m sorry to keep you waiting.--- Oh, not at all. I ______ here for only a few minutes.A. was B. have beenC. will be D. am

2.l．—Hello! My name_________ Tom．—Hello! I _________ Kate．A． is ; isB． am ; amC． am; isD． is ; am

3.—Could I see your ticket please? —________________A.I am not sure yetB.I'd love oneC.I might be. Why?D.Here you are.

4.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

更多“This is the first time I've attended such a big party. That is why I am not________. ”相关问题

  • 第1题：

    — Jane, I’m coming to say good-bye. I’m leaving tomorrow.\n— _______

    A.I’m sorry.

    B.Oh, no. Why?

    C.Go slowly.

    D.Why soon? Can’t you stay a few days longer?


    参考答案：D

  • 第2题：

    执行下列程序，显示的结果是______。

    first="china"

    second=""

    a=LEN(first)

    i=a

    DO WHILE i＞=1

    second=second+SUBSTR(first,i,1)

    i=i-1

    ENDDO

    ?second


    正确答案：anihc
    anihc 解析：变量a使用LEN函数取得字符串变量first的长度，该变量包含5个字母，所以它的长度为5，即a=5，然后将a的值赋给i，那么i也等于5。使用一个DO WHILE循环语句来操作，判断条件是变量i是否大于等于0，如果小于0，则退出循环，否则执行循环体。此时SUBSTR(first,5,1)的值为a，(从“china”字符串的第5位开始取一位字符)；执行i=i-1后，i=4，重复此循环体的操作，变量second的值依次为a、an、ani、anih，anihc，最后i0，退出循环体。

  • 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：

    I've _____ these lines again and again but I still keep forgetting them.

    A. gone off

    B. gone about

    C. gone over

    D. gone through


    正确答案：C

  • 第5题：

    A:I'm keen on football.

    B: So ( )I.

    A. have

    B. do

    C. am


    答案：B

  • 第6题：

    —why, Jack, you look so tired!

    ---Well, I _____the house and I must finish the work tomorrow.

    A. was painting

    B. will be painting

    C. have painted

    D. have been painting


    正确答案：D

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