东大17秋学期《数据库技术》在线作业3
时间:2017-09-23 14:00来源:未知 作者:admin 点击:
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18春奥鹏东大17秋学期《数据库技术》在线作业3 试卷总分:100 测试时间:-- 单选题 、单选题(共 20 道试题,共 100 分。) 1. 层次数据库中记录与记录之间的联系是通过 A. 指针 B. 索引 C. 公共属性 D. 数据项 满分:5 分 2. 有关系R和S,R∩S的运算等价于 A
11春《英语语法》作业3
试卷总分:100 测试时间:--
单选题
一、单选题(共 20 道试题,共 100 分。)V 1. Energy is ____makes thing work..
A. what
B. something
C. anything
D. that
满分:5 分
2. Is____ true that the famous scientist will give us a lecture next week?
A. that it
B. his
C. he
D. it
满分:5 分
3. ____has passed the test will get a prize
A. Whoever
B. No mater who
C. Whomever
D. Who
满分:5 分
4. ___ is still a question___ will win.
A. It/that
B. It/who
C. That/ who
D. This/ that
满分:5 分
5. ___is no possibility ____Bob can win the first prize in the match.
A. There/that
B. It/ that
C. there/whether
D. It/whether
满分:5 分
6. ___ you did it is not known to all.
A. Who
B. What
C. How
D. Which
满分:5 分
7. This is ___the shenzhou V Spaceship landed.
A. there
B. in which
C. where
D. when
满分:5 分
8. The manager came over and asked the customer how____
A. did the quarrel came about
B. the quarrel had come about
C. had the quarrel come about
D. had the quarrel come about
满分:5 分
9. ____caused the accident is still a complete mystery.
A. What
B. That
C. How
D. Where
满分:5 分
10. ____appeared to me that he enjoyed the food very much.
A. What
B. It
C. All that
D. That
满分:5 分
11. It has not been decided ___ they will leave for New York.
A. when
B. why
C. that
D. what
满分:5 分
12. It worried her a bit ____her hair was turning gray.
A. while
B. if
C. that
D. for
满分:5 分
13. What time do you think__?
A. will Tom come back
B. Tom will come back
C. is Tom coming back
D. can Tom get here
满分:5 分
14. ___ David says sounds right to Helen. That’s why she has made up her mind to leave with him___ happens.
A. whatever/whatever
B. No matter what/whatever
C. No matter what/ No matter what
D. Whatever/ however
满分:5 分
15. It is widely ______that smoking can cause cancer.
A. believed
B. think
C. say
D. hoped
满分:5 分
16. ___ moved us most was___ he looked after the old man for more than twenty years.
A. That/ that
B. What/ that
C. What/what
D. That/what
满分:5 分
17. ____he does has nothing to do with me.
A. whatever
B. No matter what
C. That
D. If
满分:5 分
18. ____all the inventions have in common is ____they have succeeded.
A. What/ what
B. That/ that
C. what/that
D. That/ what
满分:5 分
19. The order came ___the soldiers ____the small village the next morning.
A. that,had to leave
B. that, should leave
C. /, must leave
D. when,should leave
满分:5 分
20. Information has been put forward ____ more middle school graduates will be admitted into universities.
A. while
B. that
C. when
D. as
满分:5 分
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