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【简答题】
阅读下面短文,从方框中找出每段的中心句,与每一段落匹配起来。 Maybe you think of yourself as a good friend, but are you really? If you’re not sure, it’s time to think about what makes a true friend. 小题1:A good friend is busy but still manages to make time for your friends. He does not see friendships as a waste of time, or something to pay attention to only when he needs a favour. 小题2:Always be ready to listen to what the other person is telling you, even if sometimes it makes you uncomfortable. 小题3:Nothing ends a friendship faster than abandoning (抛弃) a friend in need. 小题4:When it seems like no one in your life will tell you the truth, your friend will have your back. 小题5:A true friend doesn’t gossip(说闲话) behind your back. When he doesn’t agree with you, it’s done in a respectful way that is meant for you both to come to an understanding. Be respectful. Be ready to listen. Be honest. Be there when your friend needs help. Make time for friends.
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举一反三
【单选题】下列函数,在区间(-∞,0)上为增函数的是()
A.
y = x
B.
y =1
C.
D.
y =| x |
【多选题】根据车桥上车轮的作用,车桥可分为()
A.
转向桥
B.
驱动桥
C.
转向驱动桥
D.
支持桥
【单选题】下列函数在区间(0,+∞)上为增函数的是( )
A.
y=cosx
B.
y=2^x
C.
y= 2-x^2
D.
y=log(1/3)x
【简答题】根据车桥的作用,车桥可分为转向桥、 、转向驱动桥和支持桥。
【多选题】根据车桥的作用,车桥可分为()?
A.
转向桥
B.
驱动桥
C.
转向驱动桥
D.
支持桥
【单选题】下列函数既是偶函数,又在区间(﹣∞,0)上为增函数的是 [     ]
A.
y=﹣2x
B.
C.
y=|x|
D.
y=﹣x 2
【单选题】下列函数中,在区间(0,+∞)上为增函数的是 (  ).
A.
y =lg( x +2)
B.
y =-
C.
y = x
D.
y = x +
【多选题】根据车桥上车轮的作用不同,车桥可分为
A.
转向桥
B.
驱动桥
C.
转向驱动桥
D.
支持桥
【单选题】(2012?广东)下列函数,在区间(0,+∞)上为增函数的是(  )
A.
y=ln(x+2)
B.
C.
【简答题】下列四个命题: (1).函数 在(0,+∞)上是增函数,( ,0)上也是增函数,所以 是增函数; (2).函数 的递增区间为 ; (3).已知 则 ; (4).函数 的图象与函数y=log 3 x的图象关于直线y=x对称; 其中所有正确命题的序号是 .
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