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石油北京17秋《仪表与检测技术》第二阶段在线作业

时间:2017-09-25 11:41来源:未知 作者:admin 点击:
第二阶段在线作业 已完成%(共题,还剩 题) 单选题 (共17道题) 展开 收起 1.(2.5分) 某种晶体在某一方向上受压或受拉变形时,在其相对的面上会产生异性电荷。外力消失后,电荷也消失。这种现象称为: A、压电效应 B、压阻效应 C、霍尔效应 D、多普勒效应
一、单选题需要这一门......


一、单选题 需要这一门作业答案找客服(共 25 道试题,共 100 分。)V 1. Are you _____ that the boy you saw in the hotel corridor was Peter?
A. right
B. wrong
C. straight
D. positive
满分:4 分
2. By law, when one makes a large purchase, he should have ___ opportunity to change his mind.
A. accurate
B. urgent
C. excessive
D. adequate
满分:4 分
3. The medicine_____at once, and I no longer had a headache after taking it.
A. affected
B. effect
C. operated
D. moved
满分:4 分
4. Playing violin is my favourite_____.
A. relaxment
B. relaxation
C. entertation
D. entertainmen
满分:4 分
5. You may ask your teacher_____difficulty.
A. in any case
B. in case of
C. in case
D. in the case of
满分:4 分
6. The hard-working student tries to learn more knowledge by reading _____hours.
A. extended
B. extra
C. added
D. remained
满分:4 分
7. The book was so bored(A) that I returned it (B)to the library(C) without finishing it(D).
A. so bored
B. returned it
C. to the library
D. without finishing it(
满分:4 分
8. We waited more than half an hour for Beth but _____ we had to leave without her.
A. at last
B. afterward
C. eventually
D. willingly
满分:4 分
9. Eggs are_____and expensive this month.
A. scarce
B. rare
C. little
D. short
满分:4 分
10. He was pursuing his _____ of collecting stamps for so many years.
A. like
B. hobby
C. love
D. fun
满分:4 分
11. So_______ is the weather in England that by lunchtime there could be thunder and lightening.
A. various
B. varies
C. variable
D. variation
满分:4 分
12. I think I will do it myself______ asking him for help.
A. rather than
B. other than
C. instead of
D. in place of
满分:4 分
13. Linda can _____ read and write though she has recently graduated from high school.
A. barely
B. undoubtedly
C. perfectly
D. rarely
满分:4 分
14. By_____computation,he estimated that the repairs on the house would cost him a thousand dollars.
A. coarse
B. rude
C. crude
D. rough
满分:4 分
15. If you decrease the_____of alcohol in this solution, it would be less dangerous.
A. part
B. portion
C. section
D. share
满分:4 分
16. The price of vegetables has _____because of bad weather.
A. doubled
B. doubted
C. troubled
D. drafted
满分:4 分
17. I received a _____ parcel yesterday and I am still wondering who may have sent it.
A. sincere
B. dull
C. efficient
D. mysterious
满分:4 分
18. Doing all the housework ___ my mother at least three hours a day.
A. spends
B. affords
C. occupies
D. spares
满分:4 分
19. The sky is_____.
A. brightening
B. bridegroom
C. bridling
D. brief
满分:4 分
20. "Child" has an_____plural from "Children".
A. irregular
B. unregular
C. disregular
D. imregular
满分:4 分
21. The newspaper ___ the rain will last for another three days.
A. is being said
B. says
C. is said
D. is saying
满分:4 分
22. He made a _____decision when he went into advertising.
A. lucky
B. fortunate
C. fragile
D. fortune
满分:4 分
23. Last night we went to a big party.The dinner and speeches _____ more than three hours.
A. took
B. spent
C. used
D. occupied
满分:4 分
24. We should respect the_____and take good care of the children.
A. aging
B. ageless
C. aged
D. age-ole
满分:4 分
25. She never came back, for she died on the_____.
A. operating table
B. operated table
C. operating desk
D. operated desk
满分:4 分

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