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Vocabulary 31. As the watch she had just bought was a fake, she felt fully ______ in asking for her money back.A. liberal B. probable C. justifiable D. dismal2. The entire village went to the church for Jim’s ________ —— they deeply mourned the death of the young man who died while trying to save a drowning boy.A. burial B. mourning C. ceremony D. funeral3. I disliked that shop assistant because he spoke to me with an easy ________ he treated me as if I were a close friend of his.A. formality B. acquaintance C. familiarity D. similarity4. To make the meat ________ enough for my grandmother, I cooked it for a long time.A. hard B. delicate C. gentle D. tender5. I see teaching as an opportunity to ____ students, not just to give them instructions.A. decline B. comment C. enlighten D. equip6. The committee’s suggestions sound reasonable, yet whether they can be ____ remains a problem.A. objected B. graded C. implemented D. combined7. The second principle is to let the market _______ national land and resources with proper government regulation.A. divide B. allocate C. design D. arrange8. Seeing the movie ____ many of my childhood memories.A. brought down B. brought out C. brought back D. brought up9. Soon after she settled down in the city she realized that a completely new life was ______ before her.A. following up B. opening up C. lighting up D. mounting up10. He explained that his bad temper ______ his lack of sleep; he had been working for three days and nights without any rest.A. accorded with B. resulted from C. yielded to D. built up11. The start of the new year is the perfect time to ______ the past, make resolutions for the future, and think about what the new year will bring.A. open up B. build on C. reflect on D. get out of12. It is ______ listening to what people say and observing how they behave that we’ve strengthened our own capacity to learn about society.A. by means of B. for means of C. in means of D. with means of13. There are two means to ______ knowledge: to get it personally or by second-hand experience.A. bring up B. build up C. make up D. take up14. Absent-mindedness is not at all allowed while you’re working. It’s the sort of work that _____ a high level of concentration.A. calls off B. calls for C. calls at D. call up15. One’s sense of safety comes from familiarity with the environment; so people have the ______ to resist or avoid new situations.A. efficiency B. emergency C. sufficiency D. tendency16.His strange behaviour ______ understanding; I just can not understand it.A. defines B. confines C. obeys D. defies17. He was very tired, but he held ______ till all the work was finished.A. off B. on C. up D. over18. Since it was a school for boys, he seldom had the opportunity to ______ with girls.A. interfere B. insult C. integrate D. interact19. Mary has ______ the ability to communicate with the local people using sign language.A. inquired B. pursued C. acquired D. fascinated20. The brothers’ refusal to work together had brought about this unsatisfactory ______.A. state of mind B. mind of affairs C. case of affair D. state of affairs

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假设检验的基本原理是( )

A. 大数定律
B. 中心极限定理
C. 小概率原理
D. 以上都不对

在假设检问题中,显著性水平α的意义是( )

A. 在H0成立的条件下,经检验H0被拒绝的概率
B. 在H0成立的条件下,经检验H0被接受的概率
C. 在H0不成立的条件下,经检验H0被拒绝的概率
D. 在H0不成立的条件下,经检验H0被接受的概率

若(1)确定(构造)检验统计量 ;(2)提出原假设H0和备择假设H1;(3)代入数据下结论;(4)对显著性水平α确定拒绝域;则假设检验的方法步骤顺序正确的是()

A. (1)(2)(3)(4)
B. (2)(1)(4)(3)
C. (2)(3)(4)(1)
D. (4)(1)(2)(3)

当计量翻斗承受的降水量为0.1()时,计量翻斗把降水倾倒入计数翻斗,使计数翻斗翻转1次。

A. 克
B. 毫米
C. 毫升
D. 升

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