问题
单项选择题 A型题
病例对照研究属于（）
A.观察性研究
B.分析性研究
C.临床试验
D.实验研究
E.以上都不是
答案
参考答案：B
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病例对照研究属于（）
A.观察性研究
B.分析性研究
C.临床试验
D.实验研究
E.以上都不是
参考答案：B
完形填空。 | |||
| The town of Pressure and the town of Pleasure were neighbors but had_1 in common. Residents built walls to 2 influence from the 3 town. In Pressure, everyone struggled to be the very best. When women 4 birth, they would compete to have the baby with the 5 cry. There was violent competition in very aspect of life. Because_6_ was the index(指数)of success, people were always 7 making money, with no time for relaxation . Some young people couldn't bear the intensity(紧张) and resorted to drink or drugs to escape. _ 8 , over in Pleasure, the motto was "as long as you like it, do it." People_9_ without pressure and could do anything_10 liked. Children played computer games day and night. At school, teachers didn't care 11 _students showed up or not. Workers might sit around the office 12 _sipping coffee and doing nothing. _13_the lack of regulation, nobody worried about losing their jobs. It was pleasure that mattered. No one had the slightest thought of moving 14_, either for themselves or for the town. The computers they used 15_old models from Pressure. Some of the young were addicted to 16 because of the emptiness of their lives. Then, people in the two towns began asking themselves, "What is life_17_?" But, just before life in the two towns completely failed, there came a saint-Mr. Reason. He went from door to door, _18 with people and giving advice. People in Pressure learnt to be content with what they had, while people in Pleasure began to make plans. They_19 _the walls between them and built a road to connect the two. The townspeople 20 to realize the truth-there is no space between Pressure and Pleasure if don't go to extremes. | |||
| ( )1.A. anything ( )2.A. keep out ( )3.A. another ( )4.A. gave ( )5.A. loud ( )6.A. health ( )7.A. busy ( )8.A. Meanwhile ( )9.A. got up ( )10.A. we ( )11.A. what ( )12.A. all way ( )13.A. Thanks to ( )14.A. backward ( )15.A. was ( )16.A. work ( )17.A. for ( )18.A. talked ( )19.A. pulled down ( )20.A. went | B. nothing B. look out B. any B. took B. louder B. healthy B. lazy B. At that time B. grew up B. you B. who B. all night B. Because B. forward B. were B. money B. at B. to talk B. put down B. returned | C. everything C. work out C. every C. offered C. loudest C. wealth C. easy C. At one time C. set up C. they C. where C. all way long C. Owe to C. upward C. is C. drugs C. in C. talks C. went down C. happened | D. something D. give out D. other D. brought D. loudly D. wealthy D. hard D. Once in a while D. brought up D. it D. whether D. all day long D. According to D. downward D. are D. books D. to D. talking D. wrote down D. came |
