单项选择题

《安全生产法》针对大量存在的“生死合同”，赋予了从业人员必要的法定权利，这些权利具有操作性和（ ）。

A.权威性
B.可处分性
C.不可侵犯性
D.个体差异性
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听力原文：M: Oh, hello, Li Li. Come on in, and how've you been keeping recently?W: Quite all right. Thanks, Dr. Francis. How's your project going?M: Very smoothly, I should say. I'm playing a consultancy role, really. I've only been here in China for a month, but I'm already on very good terms with my colleagues in the Department of Computer SciencE.Well, I'm happy that you could comE.Do sit down, pleasE.W: Dr. Francis, do you know I've got a chance to go to Cambridge in August? I wonder if you could tell me something about Britain.M: Certainly. Well, I was actually brought up in ScotlanD.Er...in fact, I've never been to CambridgE.But well...yes, I'm sure I can give you some useful tips. Now, what do you want to know, Li Li?W: Things like weather. What's the usual temperature there?M: Mmm, the temperature in Scotland is 22 or 23 degrees centigrade, on average, I think. But Cambridge would be warmer, around 25, I would guess, because it's down south.W: Oh, that's nicE.Do you know it is 34 here? Last year it reached 39. By the way, where do you think I should stay?M: Oh, that's important. You can, er... I suppose, stay in the college-owned fiats, which are often near where you have your classes, and some are even on the campus. That would certainly be convenient.W: Yes, it woulD.M: But it can also be a disadvantage because you are, in a sense, separated from ordinary society. You're a language teacher, and I think learning from society is a valuable experiencE.W: Yes, yes, exactly. So what's the alternative?M: Maybe finding an English host family. I know of a student Ali from the Middle East. He told me that he had learnt a lot by staying with a British family.W: Thank you. I think it's quite a good suggestion. By the way, Dr. Francis, do you think I coulD...(29)A.He is a teacher of English in CambridgE.B.He is a consultant to a Scottish company.C.He is a specialist in computer sciencE.D.He is a British tourist to ChinA.
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单项选择题
根据《矿山安全法》，关于矿山企业开采安全保障的说法，不正确的是（ ）。
A.矿山设计规定保留的矿柱、岩柱，需要的情况下，可以开采或者毁坏。
B.矿山闭坑后，对可能引起的危害，矿山企业应当采取预防措施
C.矿山企业必须对作业场所中的有毒有害物质和井下空气含氧量进行检测
D.矿山企业使用的有特殊要求的设备、器材、安全检测仪器，必须由专业厂家生产
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