“天朝上国”的迷梦，一些先进的知识分子开始摒弃闭关自守、夜郎自大的陈腐观念，把眼光投向西方寻求强国御侮之道。C项是新思潮中采取的强国御侮之道其一，而不是新思潮的核心。声音在以下哪个介质中传播的最快？（）
A.空气
B.金属
C.玻璃
D.水
参考答案：B
解析：声音的传播速度从大到小排列是：固体＞液体＞气体。而声音在金属中的传播速度远大于声音在玻璃中的传播速度。故本题答案选B。
About once a month I have to go to Bedford for my work. One day I went into a 21 there to have something to 22 . The waiter took my coat and put it in a small room. About an hour later I was 23 to go. The waiter 24 me my coat. Something fell out of the pocket onto the floor. It was a small white box. I took a 25 look at the 26 . “Oh, you’ve brought 27 coat,” I said to the waiter. “It looks very much like mine, 28 it is quite new, and this isn’t my box, either.” “Oh, then I 29 someone has taken your coat and left his,” said the waiter. “This kind of thing 30 sometimes.” I opened the box. There was a beautiful gold 31 in it. The waiter and I 32 to go to the police station. “Has anyone lost a ring?” I asked at the station. “Yes,” said a policeman. “A young man who came in this morning lost a ring, he lost it in London.” He 33 the young man. A few minutes later, the man arrived. “Yes, this is my ring,” he said. “How can I 34 you, sir? You see, I paid a lot of money for this ring and 35 I lost it on the train!” After I told him the 36 of the coat, he said, “You haven’t been on the train. I haven’t been in the hotel, so how did my ring 37 in the coat?” “Did anyone sit or stand next to you on the train?” asked the policeman. “Yes,” said the young man. “But I don’t remember his face.” “You may remember this 38 ,” said the policeman. “Was it like this one?” “Yes, it was,” said the young man. “But my friend here isn’t the thief.” The policeman laughed. “No,” he said. “The thief on the train stole your ring, and 39 our friend here, he went into the hotel to get some food. Only he didn’t take the 40 coat away with him.”
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