修一段路，第一天修了全长的310，第二天修了120米，还剩下全长的25．这段路全 发布时间：2017-06-25 02:03 │ 来源：www.tikuol.com 题型：解答题 问题： 修一段路，第一天修了全长的310，第二天修了120米，还剩下全长的 25．这段路全长多少米？
题型：解答题 女，65岁，腰痛6个月，脊椎正侧位X线片见L3、L4呈压缩性骨折，骨髓检查见浆细胞35％，有双核、三核浆细胞和火焰浆细胞，血浆蛋白电泳见β与γ之间有一M带。其异常免疫球蛋白类型最可能的是（）A.IgGB.IgAC.IgMD.IgE.IgE 查看答案
题型：解答题 下列反应中，属于取代反应的是①CH3CH＝CH2＋Br2CH3CHBrCH2Br ②CH3CH2OH CH2＝CH2↑＋H2O③CH3COOH＋CH3CH2OHCH3COOCH2CH3＋H2O ④C6H6＋HNO3C6H5NO2＋H2O A．①②B．①③C．③④ D．②④ 查看答案
题型：解答题 完形填空 We may look at the world around us, but somehow we manage not to see it until whatever we've become used to suddenly disappears. __1 _, for example, the neatly-dressed woman I __2 _ to see -- or look at -- on my way to work each morning. For three years, no matter __3 _ the weather was like, she was always waiting at the bus stop around 8:00 a.m. On __4 _ days, she wore heavy clothes and a pair of woolen gloves. Summertime __5 _ out neat, belted cotton dresses and a hat pulled low over her sunglasses. __6 _, she was an ordinary workingwoman. Of course, I __7__ all this only after she was seen no more. It was then that I realized how __8__ I expected to see her each morning. You might say I __9__ her. "Did she have an accident? Something __10 ?" I thought to myself about her _11 _. Now that she wasgone, I felt I had __12 her. I began to realize that part of our _13 _ life probably includes such chance meetings with familiar _14 _: the milkman you see at dawn, the woman who _15 _ walks her dog along thestreet every morning, the twin brothers you see at the library. Such people are _16 _ markers in our lives.They add weight to our _17 of place and belonging. Think about it. _18 _ while walking to work, we mark where we are by _19__ a certain building, why should we not mark where we are when we pass a familiar, though _20 _ person?( ) 1. A. Make ( ) 2. A. happened ( ) 3. A. what ( ) 4. A. sunny ( ) 5. A. took ( ) 6. A. Clearly ( ) 7. A. believed ( ) 8. A. long ( ) 9. A. respected ( )10. A. better ( )11. A. disappearance( )12. A. forgotten ( )13. A. happy ( )14. A. friends ( )15. A. regularly ( )16. A. common ( )17. A. choice ( )18. A. Because ( )19. A. keeping ( )20. A. unnamed B. Take B. wanted B. how B. rainy B. brought B. Particularly B. expressed B. often B. missed B. worse B. appearance B. lost B. enjoyable B. strangers B. actually B. pleasant B. knowledge B. If B. changing B. unforgettable C. Give C. used C. which C. cloudy C. carried C. Luckily C. remembered C. soon C. praised C. more C. misfortune C. known C. usual C. tourists C. hardly C. important C. decision C. Although C. passing C. unbelievable D. Have D. tried D. when D. snowy D. turned D. Especially D. wondered D. much D. admired D. less D. fortune D. hurt D. daily D. guests D. probably D. faithful D. sense D. However D. mentioning D. unreal 查看答案
CH3CHBrCH2Br 
CH2＝CH2↑＋H2OCH3COOCH2CH3＋H2O C6H5NO2＋H2O