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5.已知某校的初中学生人数、高中学生人数、教师人数之比为20:15:2,若教师人数为120人,现在用分层抽样的方法从所有师生中抽取一个容量为N的样本进行调查,若应从高中学生中抽取60人,则N=    。

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4. 已知等比数列的前3项依次为         

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3.已知虚数z满足等式: ,则     

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2.已知抛物线的准线与双曲线的左准线重合,则抛物线的焦点坐标为       .

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1.设集合M= {x|x─<0},N={x|2x+l>0},则M∩N=       ·

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第二节:书面表达  (满分25分)

假如你是李华,最近,你班同学就中学生是否可以带手机上学进行了讨论。 请你根据下列信息,给校长写一封信,客观地介绍你班讨论的情况

70%的学生认为
30%的学生认为
1. 没有必要带手机。
2.带手机会分散学习精力,上课开机影响极坏。
3. 学生用手机会增加家长经济负担。
1.学生可以带手机上学,但上课要关机。
2.学生带手机可以方便联系。
3.信息时代的交流工具,不应禁止

1.词数:100字左右 

2.经济负担economic burdens.

3.信的开头已经为你写好

Dear principle,

I’m writing to tell you about the discussion we’ve had about whether a mobile phone should be brought to school.

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第一节:语篇填空(共10小题;每小题1分,满分10分)

Ladies and gentlemen:

   Welcome to our class and to our evening party. Here we  

feel greatly _____ (荣幸) to have a good chance to be with you.               76.________

First of all, let me say a few words a____ our class. There are             77.________

45 students in our class. 32 of us are boys, ___ the rest are                  78.________

girls. Most of us are studying English, and we_____(通常)spend              79.________

much time on it. We often read English______(杂志),newspapers          80.________

and watch English programs on TV in our spare time. We are ________(决心) 81. _______

to learn English well so ____ to have a better job in the future.            82.________

  In our program tonight, t___ are cross talks, short plays, group singing,        83.________

popular songs and so on. I hope you will enjoy them and ____ a good time.   84.________

And of c______ your participation would be appreciated.                85.________

   Thank you.

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