【单选题】【消耗次数:1】
Drop me [填空] at school, please.
off
out
in
down
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相关题目
【单选题】 A: Bring me the bill, please. B: [填空].
①  You are welcome
②  Ill hurry up
③  Please wait for a moment, sir
④  Be quick
【单选题】 A: Please remember me to your parents. B: [填空].
①  They remember seeing you once
②  I am afraid they have poor memories
③  You can contact them directly
④  Thanks a lot. I will
【单选题】 Can you turn down the radio, please?
①  Oh, I know
②  I’m sorry, I didn’t realize it was that loud
③  I’ll keep it down next time
④  Please forgive me
【单选题】 A: I didnt mean to do that. Please forgive me. B: [填空].
①  You are wrong
②  You are welcome
③  Thats all right
④  Thats OK
【单选题】 Please get me a new [填空] when you go back home.
①  clothes
②  dress
③  clothing
④  trousers
【单选题】 - Excuse me, is this the right direction for the school?
①  Well, no, you’re going in the wrong direction
②  No, don’t ask me
③  No, I don’t know
④  Don’t go this way
【单选题】 Please drop in whenever you can.. I’d like to keep _________ touch..
①  in
②  to
③  on
④  with
【单选题】 Look out ! That tree _______ fall down.
①  is going to
②  will be
③  shall
④  would
【单选题】 Look out! That tree ___ fall down.
①  is going to
②  will be
③  shall
④  would
【单选题】 Look out ! That tree_______ fall down.
①  is going to
②  will be
③  shall
④  would
随机题目
【单选题】 格作为偏序集合,不满足下面哪个条件:
①  自反性;
②  对称性;
③  反对称性;
④  传递性。
【判断题】 关于整数集合上的普通的减法运算具有结合律。
①  正确
②  错误
【判断题】 求完全二部图K2,4的支配数g0 =2.
①  正确
②  错误
【判断题】 设n (n 3 2)阶无向树,它是自对偶图。
①  正确
②  错误
【判断题】 关于极大平面图G,则G中没有割点和桥。
①  正确
②  错误
【判断题】 根据拉格朗日定理, 一个8阶群的子群不可能是6阶子群。
①  正确
②  错误
【多选题】 设一平面图G有 n个顶点, m 条边, r 个面,k个连通分支,则下列哪些不是欧拉公式:
①  m - n + r = 2;
②  n - m + r = k + 1;
③  n - r + m = k + 1;
④  n - m + r = 2。
【多选题】 关于 n阶完全图Kn,下列哪些是平面图:
①  K2;
②  K3;
③  K4;
④  K5。
【多选题】 设áB, ù, ú, ¢, 0, 1?是布尔代数, 在 B 上定义二元运算?, x, y?B,x?y = (xùy¢) ú (x¢ùy),则áB, ??能构成:
①  不是代数系统;
②  半群;
③  独异点;
④  群。
【多选题】 设 G 是 n (n32)阶 n + 1 条边的无向简单连通图, 则以下哪些性质正确:
①  存在顶点 v, d(v)33;
②  所以顶点度数之和等于2(n + 1);
③  至少有两个顶点不是割点;
④  奇度顶点个数可以不是偶数个。