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24.When you are ______ about something, you are ______ to do whatever you can to get it.

   A. anxious; likely                           B. eager; possible    

     C. enthusiastic; likely                     D. concerned; probable

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23.Only in this way ______ progress in your Japanese. 

A. you make              B. you be able to make 

C. can you make            D. you can make 

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22.The manager and general engineer _____ very strict _____ his employees and ____ his work as well.

   A.is; with; in       B.are; with; in       C.is; with; with    D.are; in; in

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第一节      单项填空(共15小题;每小题1分,满分15分)

   从A﹑B﹑C﹑D四个选项中, 选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。

例:It is generally considered unwise to give a child ________ he or she wants.

     A.however          B.whatever    C.whichever      D. whenever

答案是B。

21.The combination of parties to form a new government tried out to be

   ______ failure, but as we know, success often comes from _____ failure.

   A.a; a       B./; /       C.a; /       D./ ; a

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22、(本小题满分12分)

设锐角三角形的内角的对边分别为

(1)求的大小;

(2)求的取值范围.

扶余县第一中学2010-2011学年度上学期第一次月考试题

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21、(本小题满分12分)

已知数列中,

(1)设,求证:数列是等差数列

(2)求数列的通项公式

(3)设,求数列的前项和

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20、(本小题满分12分)

已知数列是等差数列,且

(1)求数列的通项公式;

(2)令求数列前n项和的公式.

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19、(本小题满分12分)

已知:数列是等差数列,且

求:(1)数列的通项公式;

  (2)数列的前项和的最大值。

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同步练习册答案