多项选择题
对于高强混凝土的叙述，错误的是（）。
A.高强混凝土的耐久性优于普通混凝土
B.采用高强混凝土的预应力混凝土构件的刚度小，变形大
C.高强混凝土的延性比普通混凝土好
D.高强混凝土的最终收缩量与普通混凝土基本相同
E.高强混凝土的抗压性能与普通混凝土有较大的差别
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单项选择题
矿山安全技术本部分共10小题，每小题1分。每题的备选项中只有一个最符合题意。下列主要用于立井井筒、运输大巷及井底车场所采用的主要支护方式是( )。
A.锚杆支护
B．锚喷支护
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多项选择题
一般地区的平屋顶的构造主要由（）组成。
A.结合层
B.隔热层
C.结构层
D.隔汽层
E.顶棚 -
单项选择题
听力原文：M: Well, Donna, you look so happy. Any good news?W: No...Yes...I have a date tonight, but...M: Oh, that's really a celebration.W: Well. I've never done this before. I feel kind of silly, but here goes. Anyway, I am a little nervous.M: Don't be shy. Tell me what kind of man do you like to date?W: I guess I really like men who are funny. I love to laugh and be happy. That's the most important thing. I don't like men who are really loud. I mean, I like men to laugh. I don't want them to sound like donkeys!M: What about the appearance, must he be handsome?W: Not necessary. But he should be tall, muscular, deeply emotional and totally serf-controlled. Besides, I like men who are intelligent and open-minded. Humor is important. I love talking about books, movies and politics.M: Well, what kind of men are net to your liking?W: Let me see. I hate men who think they are always right, the stubborn one often getting into bad mood if you don't agree with them. I don't like moody person.M: What do you think is the most essential for young people?W: Mutual understanding. At least we shall respect each other.M: Sounds great. Good luck tonight.What kind of topics do you think Donna does NOT like?A．Movies.B．Books.C．Politics.D．Music.
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I.Movies.
B．Books.
C．Politics.
D．Music.
