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听力原文:M: What did you do to celebrate your birthday? W: My friends took me to see Cirque du Soleil. What a show! It was unlike anything I had ever seen before. The performances were mesmerizing---they were art! M: Wow, it sounds like you really enjoyed yourself. What distinguishes Cirque du Soleil from other circuses? W: It simply has class. The acts have a certain style. that you don't see in other circuses. There is soft, romantic lighting and fantastic music which ranges from classical to jazz. But, what really sets the circus apart is the costumes with their beautiful fabrics, rich colors and fairy tale designs. M: It sounds amazing, but I always feel a little guilty when I go to the circus. It seems so cruel to use animals for our entertainment. W: Cirque du Soleil doesn't believe in using animals. They rely on human performers including acrobats, trapeze artists and contortionists. M: That's wonderful. I wish other circuses would do the same. W: And the human performances are much more fun. There was one clown who actually juggled eight wine glasses at one time. I couldn't believe it. There was also a magician who performed a series of comical tricks involving members of the audience. I loved the whole thing. You really should see them while they are in town. M: I think I'll go this weekend. (23)
A.
It's a concert.
B.
It's a circus.
C.
It's a game.
D.
It's a movie.
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【判断题】若 , 均为单位向量,那么 是单位向量.
A.
正确
B.
错误
【单选题】测量锅炉烟道中的烟气温度,应选用哪种 热电偶?
A.
装配式
B.
铠装式
C.
薄膜式
【单选题】为什么裤子是破的?
A.
摔了一跤
B.
自己剪的
C.
一种时尚,一种裤子样式
D.
我为什么要关心裤子
【单选题】某消费者消费一个单位的某商品获得的效用为 5 0 ,消费两单位该商品的 总 效用为 90,消费三单位 该商品 的 总 效用为 12 5 ,则该消费者消费第三单位的该商品获得的边际效用为 :
A.
5 0
B.
40
C.
3 5
D.
125
【单选题】测量锅炉烟道中的烟气温度,应选用( )型的热电偶。
A.
装配型
B.
铠装型
C.
薄膜型
D.
热电堆
【判断题】马勃为多孔菌科真菌脱皮马勃、大马勃或紫色马勃的干燥子实体。
A.
正确
B.
错误
【单选题】测量锅炉烟道中的烟气温度,应选用 ( ) 型的热电偶
A.
普通
B.
铠装
C.
薄膜
D.
热电堆
【多选题】关于辩论原则的表述,下列哪些选项是正确的
A.
当事人辩论权的行使仅局限于一审程序中开庭审理的法庭调查和法庭辩论阶段
B.
当事人向法院提出起诉状和答辩状是其行使辩论权的一种表现
C.
证人出庭陈述证言是证人行使辩论权的一种表现
D.
督促程序不适用辩论原则
【单选题】某消费者消费一单位X商品获得的总效用为50,消费两单位的总效用为90,消费三单位的总效用为121,所以,该消费者消费的第三单位的X商品获得的边际效用为( )。
A.
121
B.
40
C.
31
D.
71
【单选题】某消费者消费1个单位的某商品获得的效用为50,消费2单位该商品的效用为90,消费3单位的效用为121,则该消费者消费第三单位的该商品获得的边际效用为(    )。
A.
87
B.
40
C.
31
D.
71
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