题目

人们常将果疏放入冰箱冷藏，其主要原因是（ ） A . 低温能杀死细菌 B . 低温降低果疏的蒸腾作用 C . 低温抑制果疏的呼吸作用，有机物消耗少 D . 低温抑制果疏的光合作用 答案：CI was in a strange city I didn’t know at all, and what’s more, I could not speak a word of the language. On my second day I got on the first bus that passed, rode on it for several stops, then got off and walked on. The first two hours passed pleasantly enough, then I decided to turn back to my hotel for lunch. After walking about for some time, I decided I had better ask the way. The trouble was that the only word I knew of the language was the name of the street in which I lived, and even that I pronounced badly. I stopped to ask a newspaper-seller. He handed me a paper. I shook my head and repeated the name of the street and he put the paper into my hands. I had to give him some money and went on my way. The next person I asked was a policeman. He listened to me carefully, nodded and gently took me by the arm. There was a strange look in his eyes as he pointed left and right and left again. I nodded politely and began walking in the direction he pointed. About an hour passed and I noticed that the houses were getting fewer and fewer and green fields were appearing on either side of me. I had come all the way into the countryside. The only thing left for me to do was find the nearest railway station. 56. The writer preferred to walk back to his hotel because. 　A. he had no money to buy a ticket　 　 B. he wanted to lose himself in the city 　C. he tried to know the city in this way D. it was late and there were no buses passing by 57. From the story we know that the policeman______. 　A. was kind but didn’t understand the writer　B. told the writer where to take a train 　C. knew what the writer really meant　 　D. was cold-hearted and didn’t help the writer 58. What can we learn from the last paragraph? A. The writer got close to the hotel where he stayed.　 B. The writer got to the hotel with the policeman’s help. 　C. The writer found he was much farther away from the hotel. 　D. The writer found the hotel in the direction the policeman pointed. 59. In your opinion, what was the writer’s real trouble? A. He didn’t know the city at all.　 B. He couldn’t speak the language. 　C. He went too far in the wrong bus. D. He followed the policeman’s direction.