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【单选题】
集合的三要素是确定性,互异性,无序性A.
是
B.
否
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【单选题】听力原文：W: I'd like you to go to the exhibition with me this evening M: I'm exhausted. You must manage it without me tonight. Q: What does the man mean? (16)
A.
He will go to the exhibition with her.
B.
She'd better not go to exhibition without him.
C.
He can not go with her for the exhibition.
D.
She must know how to do with the exhibition.
【单选题】听力原文：W: Oh, Jackie, I've had such a terrible day. M: You look exhausted. What on earth have you been doing? W: Oh, I've been such a fool! You just wouldn't believe what I've done. M: I would, I would....
A.
In central London.
B.
Near a police station.
C.
By the tube station.
D.
On a side street.
【单选题】下列关于网络工作模式的说法中,错误的是
A.
一台计算机到底是服务器，还是客户机，取决于该计算机安装和运行什么软件
B.
若采用对等模式，网络中每台计算机既可以作为工作站也可以作为服务器
C.
在C/S模式中，网络中每台计算机要么是服务器，要么是客户机
D.
充当服务器角色的大多数设备是便携式计算机或个人电脑
【单选题】听力原文：W: What a day! I'm exhausted. M: Well it' s not over yet. W: Yeah, but it' s over for me. I have to go back home and be there when the kids get home. M: Oh, that' s right. I have to go back to th...
A.
Her kids will arrive home after school.
B.
She is too exhausted to work.
C.
She has Finished her work.
D.
The man does not ask her to go back to the office.
【单选题】听力原文：W: I'm exhausted. It took me about three hours just to buy a few things. M: What did you buy? W: I bought a dozen cassettes. M: How much did they cost you? W: I bought them on sale. They were $ 2...
A.
$ 20.
B.
$ 22.
C.
$ 20.80.
D.
$ 21.20.
【多选题】中国古代上自天子王侯的都城,下至州郡府县的治所,都有城墙围绕。城墙上有( )等防御工事,构成一整套坚固的防御体系。 2019 省赛
A.
城楼
B.
角楼
C.
垛口
D.
射台
【简答题】I was so exhausted by________________(我所经历的一切) that my nerves almost broke.
【多选题】中国古代上自天子王侯的都城,下至州郡府县的治所,都有城墙围绕。城墙上有( )等防御工事,构成一整套坚固的防御体系。
A.
城楼
B.
角楼
C.
垛口
D.
射台
E.
门楼
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