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[听力原文]9-10W: Now, Mr. Sun, did you see the accident clearlyM: Oh, yes. I was standing outside the post office.W: Can you remember what time it happenedM: Yes, it was 4:25 by my watch.W: Good. Now, was the truck going fastM: Yes. Well, perhaps the driver thought the traffic lights were going to change to green. But they were red.W: Are you sum, Mr. SunM: Yes, absolutely sure.W: Well, thanks a lot, Mr. Sun. Good-bye.M: Good-bye. What are the two speakers talking about（）
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Dear Miss Li,I hereby confirm that you have been accepted by the Virginia University to study medicine. Your course will commence on 28 September 2004. You should register before 25 September. Your college life consists 10 semesters -6 in York College, 4 for practice. You are required to pass the Medical Ability Test during semester 6, otherwise you are not qualified to get master degree. At the end of semester 8, you shall hand in your MA paper on medicine. When graduating, you will receive master degree. If you go on for another three years, you will gain doctor degree.You have paid tuition fees for five semesters and six month’ s accommodation, and the medical insurance as well. Your diet will be included in the accommodation fee. Remember to send your luggage before 20 September. You can collect it when you arrive.Best wishes,Yours sincerelyAdministrative Assistant For what period have she paid tuition fees The time is（）
案例分析题某市税务局税务人员甲到该市某企业征税。该企业总经理王某殴打税务人员甲，拒不缴税。王某的朋友李某当时恰巧路过，看到王某殴打甲，不知甲是谁，不知事情原委，但也参与了殴打该税务人员甲。税务人虽甲在归途中，遭遇陈某抢劫。经鉴定，王、李的行为造成税务人员甲轻微伤。 该企业（）。
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苯唑青霉素的半衰期为0.5小时，有30%的剂量末变化地经尿排泄，其余的受到生物转化，问生物转化的速度常数是多少
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