A．开瓣音 B．奔马律
C．Austin-Flint音 D．Graham-Steell音
二尖瓣狭窄时，心尖部常闻及
A．
B．
C．
D．

A．进餐后腹痛加重 B．左下腹阵发性疼痛 C．痉挛性阵痛伴腹鸣，排便后缓解 D．疼痛—便意—便后缓解溃疡性结肠炎的腹痛规律是A． B． C． D．

A.进餐后腹痛加重
B.左下腹阵发性疼痛
C.痉挛性阵痛伴腹鸣，排便后缓解
D.疼痛—便意—便后缓解
溃疡性结肠炎的腹痛规律是
A．

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听力原文： Conversations are really kind of interesting. I guess it's a kind of hobby of mine to listen to conversations that I can hear in public. It's amazing how different the style. or the tone or the content of different conversations can be and to listen to the differences in the language that people use when they speak to different people. If you are ever in a bookstore or a department store, it's interesting to hear how the same salesperson talks to different people. There're other interesting places to listen to conversations too, I think, and one place that I've found is on bus trips. People often talk to each other as if no one else were there. I guess they think people can't hear their conversations. Recently I was on a bus. and I was listening to a conversation of two people behind me. I can't really say I was listening. I guess it would have been hard not to hear it. It was amusing to listen to the two people, though, because they were playing a kind of language, uh, word game about states and state capitals. One person would say the name of the state, and the other person would say the name of the capital. It sounds like a kind of simple game that doesn't involve much language, and you wouldn't think that it would involve very much conversation, but actually this wasn't the case because as they were playing the game, they continued to compliment one another and to talk about how much they knew about history and how many of the other things they could or couldn't remember about those places from their trips or from their reading. It was really kind of fun to listen to them.(33)A．Listening to different styles of conversations.B．Listening to the content of different conversations.C．Listening to bow salesmen talk to different people.D．Listening to conversations in public. 点击查看答案