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【单选题】
下列关于函数的论断中正确的是( )。A.
任意两个函数都可以复合成一个函数。
B.
有界的函数必定既有上界又有下界。
C.
函数在一个区间上的最大值可能比该区间上的最小值小。
D.
任何函数都存在反函数。
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举一反三
【单选题】Jane , what a nice coat you are wearing today! - Thank you ! I ____ 480 yuan on it.
A.
cost
B.
took
C.
paid for
D.
spent
【单选题】— What's he wearing? — ___________________ [ ]
A.
He's wearing a green shirt.
B.
I am wearing a green shirt.
C.
She's wearing a green blouse.
【单选题】— David has been away for more than 25 days . — I miss him very much . You know, 25 days short .
A.
is
B.
isn ’ t
C.
are
D.
aren ’ t
【单选题】--What a beautiful dress Jane is wearing！ --But it doesn't look good ____ her skin.
A.
on
B.
in
C.
against
D.
alongside
【简答题】连词成句。 1. wearing, a, Jenny, is, dress __________________________________ 2. are, skirts, The, wearing, girls __________________________________ 3. shirts, boys, are, The, wearing _____________________...
【单选题】What does the underlined sentence in the third pa ragraph mean?
A.
Jane’s life is very difficult．
B.
Jane continues to live as usual．
C.
Jane almost can’t control her lire
D.
Jane works very hard to live a happy life．
【单选题】Jane in the story of Becoming Jane is ________.
A.
Jane Eyre
B.
Jane Austen
C.
Jane Seymour
D.
Jane Livsilk
【单选题】Jane wanted to ______ some male attention by wearing hot dress in the club.
A.
attract
B.
attractive
C.
attempt
D.
audition
【简答题】关注生命，就是关注地球，地球的秘密令无数专家、学者终生去探究。就此回答1～2题： 1．小雪到英国格林尼治天文台旧址旅游时，他两脚跨在本初子午线地标的两侧，张开双臂表示东经和西经，此时东经和西经的度数分别向东、向西变化的规律是 [ ] A．没有变化 B．度数减少 C．度数增大 D．变化无规律 2．北宋沈括在《梦溪笔谈》中记载：在太行山（提示：位于北京西部）中发现许多海螺、海蚌壳等生物化石。这...
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