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【简答题】
给出下列四个结论： ①函数y=sinx在第一象限是增函数； ②函数 y=|cosx+ 1 2 | 的最小正周期是π； ③若am 2 ＜bm 2 ，则a＜b； ④函数f（x）=x-sinx（x∈R）有3个零点； ⑤对于任意实数x，有f（-x）=-f（x），g（-x）=g（x），且x＞0时，f′（x）＞0，g′（x＞0），则x＜0时f′（x）＞g′（x）． 其中正确结论的序号是 ______．（填上所有正确结论的序号）
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举一反三
【单选题】What does the speaker say about the photographer?
A.
Frank shows common scenes in a vivid and deep way.
B.
Frank overlooks some commonplaces in the book.
C.
Frank focuses a little more on the people than the space.
D.
Frank is good at constructing the spaces for people.
【简答题】What does Frank plan to do right after graduation? 查看材料 A.Work as a programmer. B.Travel around the world. C.Start his own business.
【单选题】Does Lisa agree with what Frank said about her understanding of the happiest people?
A.
Yes.
B.
No.
C.
Not mentioned.
【单选题】What does Frank not say about “postmodernism”?
A.
It’s difficult to say what it is.
B.
You can use it to describe lots of things.
C.
The word has been used for more than 50 years.
D.
Only young people are interested in it.
【简答题】调色电脑内装有____,储存了大量的____和其它电子颜色资料。
【单选题】What does Frank not say about “postmodernism”?
A.
It’s difficult to say what it is.
B.
You can use it to describe lots of things.
C.
Only young people are interested in it.
D.
The word has been used for more than 50 years.
【单选题】在OSI模型中,第N层和其上的N+1层的关系是:
A.
N层为N+1层提供服务
B.
N+1层将从N层接收的信息增了一个头
C.
N层利用N+1层提供的服务
D.
N层对N+1层没有任何作用
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