题目内容
宫内节育器的抗生育作用除外（）
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上市公司公开发行股票，应当由证券公司承销；非公开发行股票，如发行对象均属于原前15名股东的，则可以由上市公司自行销售。()
【B20】
听力原文：M: Good morning, Dr Ellis' Office.
W: This is Mrs Jackson. May I speak to the doctor？
M: Mrs Jaekson. Dr Ellis here. How's that new tooth？
W: Not so good, doctor. That's what I'm calling about. It just doesn't seem to fit right.
M: Well, that's to be expected during the first few days after it has been put in. Have you been leaving it in as I told you？
W: Well, it hurts so much, doctor. Especially when I eat.
M: I understand, Mrs Jackson. It hurts in the beginning, I know. But it's really better to leave it in, except when you clean it, of course.
W: Well, I did at first, doctor, but it hurt so much that I just couldn't stand it any longer.
M: Well, maybe we can set it right a little more.
W: Set it right？
M: Yes, when can you come here？
W: Oh, right away, doctor, if you don't mind.
M: Let me see. Can you get here by 11:00？
W: Oh, yes, doctor, I can make it. Thank you. See you then.
Why did the woman go to the doctor's a few days ago？
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图8 西藏对外贸易情况图
2007年该省贸易顺差为()万美元
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