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【简答题】
判断下列命题是全称命题还是存在性命题,并写出它们的否定: (1)p:对任意的x∈R,x 2 +x+1=0都成立; (2)p:?x∈R,x 2 +2x+5>0.
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举一反三
【简答题】选择恰当的句予完成下列对话。 A: Hi, James. This is Henry. B: Hi, Henry. How's it going? A: 1 Do you know where I am? B: Where are you? A: I'm in Australia. B: Really? 2 A: I'm visiting my aunt. She's working here. ...
【单选题】---Hi, Henry. How are you? ---
A.
How do you do?   
B.
How are you?   
C.
I’m fine, thanks
【单选题】C语言是由谁发明的?
A.
D.M.Ritchie
B.
Ken Thompson
C.
Martin Richards
D.
Brian Kernighan
【单选题】C语言是仅产生少量的机器语言以及不需要任何运行环境支持便能运行的高效率程序设计语言。请问C语言是由谁设计发明的?
A.
吉多·范罗苏姆
B.
丹尼斯·里奇
C.
威廉·亚瑟
D.
约翰·维尔逊
【简答题】完成对话。 A:Hi, Ben. B: Hi, Sally. A: 1 ? B: I like comedies. A: 2 ? B: My brother likes thrillers. A: Do you like documentaries, either? B: No, 3 . A: What else movies do you like ? B: 4 .
【单选题】"Hi there. Ben, How is everything going?" " "
A.
Everything is going pretty well.
B.
I am planning to go shopping.
C.
Hi, nice to meet you.
【单选题】浮脉主病为
A.
表证
B.
里证
C.
虚证
D.
表证与虚证
E.
寒证
【单选题】浮脉主病为( )
A.
表证
B.
里证
C.
虚证
D.
表证与虚证
【单选题】-Hi, Ben. This is Candy. --______.
A.
Good afternoon. Ben.
B.
Good afternoon. Candy.
【单选题】"Hi there, Ben. How's everything going?" "__________"
A.
Everything is going pretty well
B.
I'm planning to go shopping.
C.
Hi, nice to see you.
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