某药物达稳态血药浓度后，中途停药，还需多少时间再达稳态A．需1个t1/2 B．需3个 发布时间：2017-12-20 17:11 │ 来源：www.tikuol.com 题型：单项选择题 问题： 某药物达稳态血药浓度后，中途停药，还需多少时间再达稳态A．需1个t1/2B．需3个t1/2C．需5个t1/2D．需7个t1/2E．不需要，可立即达到稳态
题型：单项选择题 完形填空。 when Chinese people find out that someone comes from London, they often say, "London is a foggy city, isn't it?" British people who visit China often 1 say that London is not a foggy city at all!But if London is not foggy. 2 bo so many people in China think it is?In tact, London used to be a foggy city, 3 in isn't any more. In London peole of this it in pollution (污染) came from factories, but a lot of it came from coal (煤)because people used it in their houses 4 warm duing the winter.By the 1950s, Long-don's air pollution had became so 5 that the govemment (政府) decided to do something to clean up the air. A new rule was made. It said that 6 was not allowed to bum (燃烧) cosl in any British city. Just a few years 7 , the air became much cleaner. Now many Chinese cities meet the same kind of 8 with air pollution that London met forty or fitty years ago. However.this problem is more difficult for Chinese cities to 9 . First, more of the pollution comes from big fsctoies than from coal that pcople use in their houses. If these fac-lories are suddenly closed, lots of people 10 their jobs.Second, cleaner fuels(燃料)are quite expensive. However, the air in many cities is 11 slowly becoming cleaner,because the govem-ment and ordinary people are trying to make pollution 12 . As a result,the air in Beijing is get-ting cleaner and cleaner. ( )1. A. must ( )2. A. what ( )3. A. and ( )4. A. to keep ( )5. A. well ( )6. A. somebody ( )7. A. before ( )8. A. problem ( )9. A. find ( )10. A. lost ( )11. A. almost ( )12. A. liule B. have to B. when B. but B. keeping B. good B. anybody B. ago B. questionB. answer B. lose B. already B. less C. should C. which C. SO C. kept C. badly C. nobody C. later C. accident C. solve C. would lose C. hardly C. much D. Will D. why D. or D. keep D. bad D. everybody D. after D. discussion D. save D. will lose D. nearly D. more 查看答案
题型：单项选择题 关于创伤的急救和转运，下列哪项是错误的（）。A.对昏迷伤员，为防止呕吐物引起的窒息，最可靠的方法是在口腔内放一通气管B.开放性伤口用无菌纱布覆盖，缠上绷带C.四肢动脉大出血时要上止血带D.脊柱骨折的伤员必须卧板床E.已判明无颅脑及腹部内脏损伤而剧痛的伤员可注射止痛剂 查看答案