题型：问答题 简答题 完形填空。 I was woken up at 1 am. My roommate stood at the door with a tall man. "Please let him in," she told me. "He's been__1__out of his apartment. " She had seen him__2__in the snowy night and immediately asked him to__3__at our place. The man was a law student. He was doing his__4__in the library which closed at 11 pm when he__5__he had left his keys in his house. To tell the truth, I had never had a(n)__6__sleep in my house before. My roommate and I were both__7__than one metre sixty and we had been asked "not to__8__to a man whom you don' t know" since we were kids. Not to mention we were in a__9__city that we had stayed in less than a month. And here we were soon giving the man my blanket and pillows. He__10__our hospitality (盛情) with unwillingness__11__soon as dawn broke he went back to his apartment. The next day he came to our house__12__, telling us he owed us a big meal for not letting him be__13__in the cold night. He gave us a beautiful card reading, "Thank you so much. Your actions were so__14__He cooked us a wonderful "thank you" dinner__15__which he told us about his life. He told us how he was completely__16__by our concern for others. I learnt a lot that evening. As he told us how he once__17__a homeless man home to have Christmas dinner with his family, a feeling of warmth rose in my__18__. My roommate taught me a huge lesson: Let go of your__19__, always leave the door of your__20__open and you can never go wrong.( )1.A. driven ( )2.A. shaking ( )3.A. sleep ( )4.A. show( )5.A. knew ( )6.A. stranger ( )7.A. taller ( )8.A. go ( )9.A. modern( )10.A. appreciated ( )11.A. and( )12.A. crying( )13.A. thrown ( )14.A. common ( )15.A. during ( )16.A. interested ( )17.A. called ( )18.A. heart ( )19.A. anger ( )20.A. kindness B. made B. walkingB. eatB. homework B. saw B. adultB. more B. speakB. new B. experiencedB. butB. laughingB. hurt B. greatB. forB. touchedB. left B. body B. careB. apartmentC. takenC. runningC. wait C. speech C. found C. studentC. less C. listen C. bigC. refusedC. though C. smilingC. caught C. honest C. aboutC. surprisedC. turned C. mind C. tear C. thoughts D. lockedD. watchingD. study D. labourD. heard D. roommateD. smaller D. relateD. faraway D. acceptedD. for D. shoutingD. frozenD. hardD. inD. puzzled D. brought D. headD. shyness D. place 查看答案
题型：问答题 简答题 某含C、H、O的液态有机物，在空气中燃烧。10.0mg样品得22.0mgCO2及12.0mgH2O，该有机物经氧化反应生成一个酮，该化合物可能是（）。A.丙烷B.2-丙醇C.丙酸D.丙醛 查看答案