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假定某商品的价格从10美元下降到9美元,需求量从70增加

时间:2018-01-12 15:35来源:未知 作者:admin 点击:
7.假定某商品的价格从10美元下降到9美元,需求量从70增加到75,则需求为()。 A. 缺乏弹性 B. 富有弹性 C. 单一弹性 D. 难以确定 正确答案:A满分:3分 8.根据加速原理,引起净投资的原因是()。 A. 产出增加 B. 价格提高 C. 利息率下降 D. 工资下降 正确答

《大学英语3》2013年春学期在线作业(三)
试卷总分:100 测试时间:--
单选题

、单选题(共 20 道试题,共 100 分。)
1.
— It’s a good idea. But who’s going to _______ the plan?
— I think John and Peter will.
A. carry out
B. get through
C. take in
D. set aside
   满分:5 分
2.
— Excuse me, could you show me the way to the nearest post office?
— _______ Oh, yes! Two blocks away from here at the Green Avenue. You can’t miss it.
A. I beg your pardon?
B. What do you mean?
C. You’re welcome.
D. Mm, let me think.
   满分:5 分
3. There’s lots of fruit _______ the tree. Our little cat is also in the tree.
A. in
B. at
C. under
D. on
   满分:5 分
4. The computer system _______ suddenly while he was searching for information on the Internet.
A. broke down
B. broke out
C. broke up
D. broke in
   满分:5 分
5.
— David injured his leg playing football yesterday.
— Really? ______
A. Who did that?
B. What’s wrong with him?
C. How did that happen?
D. Why was he so careless?
   满分:5 分
6. How can he _______ if he is not _______?
A. listen; hearing
B. hear; listening
C. be listening; heard
D. be hearing; listened to
   满分:5 分
7. _______ her and then try to copy what she does.
A. Mind
B. See
C. Stare at
D. Watch
   满分:5 分
8.
— How was your trip to London, Jane?
 — _______
A. Oh, wonderful indeed.
B. I went there alone.
C. The guide showed me the way.
D. By plane and by bus.
   满分:5 分
9. The red flower goes from one to _______ in the class.
A. the other
B. others
C. another
D. other
   满分:5 分
10.
— Do you mind my smoking here?
— ______
A. No, thanks.
B. Yes, I do.
C. Yes, I’d rather not.
D. Good idea.
   满分:5 分
11. Two days is not enough for him to finish the work. He needs _______ day.
A. other
B. the other
C. the third
D. a third
   满分:5 分
12.
— This box is too heavy for me to carry upstairs.
— _______
A. You may ask for help.
B. Let me give you a hand.
C. Please do me a favor.
D. I’d come to help
   满分:5 分
13. The manager will not _______ us to use his car.
A. have
B. let
C. agree
D. allow
   满分:5 分
14.
— I wonder if I could use your computer tonight?
 — _______ I’m not using it right now.
A. Sure, go ahead.
B. I don’t know.
C. It doesn’t matter.
D. Who cares?
   满分:5 分
15.
— Hey, Tom, what’s up?
— _______
A. Yes, definitely!
B. Oh, not much.
C. What is happening in you life?
D. You are lucky.
   满分:5 分
16. It’s bad _______ for you to smoke in the public places where smoking is not allowed.
A. behavior
B. action
C. manner
D. movement
   满分:5 分
17. Will you _______ me a favor, please?
A. do
B. make
C. bring
D. give
   满分:5 分
18.
— Wow! This is a marvelous room! I’ve never known you’re so artistic.
— _______
A. Great, I am very art-conscious.
B. Don’t mention it.
C. Thanks for your compliments.
D. It’s fine.
   满分:5 分
19.
— Is it possible for you to work late tonight?
— _______
A. I like it.
B. I’ll do that.
C. I’d love to.
D. I think so.
   满分:5 分
20.
— Unbelievable! I have failed the driving test again!
— _______ This is not the end of the world.
A. Good luck.
B. Cheer up.
C. Go ahead.
D. No problem.
   满分:5 分

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