题目

下列实验设计方案中，可行的是（ ） A . 用加入适量NaCl溶液的方法除去Cu(NO3)2溶液中的AgNO3杂质 B . 用洗气瓶中的NaOH溶液除去CO2气体中混有的HCl气体 C . 向某无色溶液中仅加入BaCl2溶液，以检验未知溶液中的SO42- D . 先后添加石蕊试液、BaCl2溶液，可将盐酸、硫酸、硫酸钠、氢氧化钠和硝酸钾五种溶液鉴别开Man is the pride of life,each person has their own dreams!My dream is to be an excellent 1       ,I want to work in a big 2        as a famous doctor―angels in 3       . I think doctor is another kind of 4       who does human art by fighting 5        diseases and makingpeople feel 6       . I think it is a pleasure to try my best 7        happiness to 8       . It is a feeling of 9.        In modern life,a lot of people work day and 10        and 11       a result they hurt their 12      . I dream  to be an excellent doctor who can help them 13        life again. So 14       now on,I have to study 15        and to try my best to achieve my dream. I will major in (主修) medicine in the university. I need to do a lot in order to achieve my dream.(   ) 1. A. worker   B. farmer   C. doctor   D. teacher(   ) 2. A. factory   B. farm   C. school   D. hospital(   ) 3. A. red   B. green   C. white   D. black(   ) 4. A. art   B. artist   C. scientist   D. worker(   ) 5. A. for   B. with   C. to   D. again(   ) 6. A. bad   B. worse   C. good   D. happy(   ) 7. A. to take   B. take   C. bring   D. to bring(   ) 8. A. another   B. the other   C. others   D. the others(   ) 9. A. price   B. proud   C. pride   D. pretty(   ) 10. A. night   B. dark   C. dawn   D. drawer (   ) 11. A. as   B. be   C. for   D. in(   ) 12. A. health   B. healthy   C. fit   D. heart(   ) 13. A. share   B. like   C. love   D. enjoy(   ) 14. A. from   B. at   C. with   D. to(   ) 15. A. badly   B. hard   C. hardly   D. badly