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一个长方形,长比宽多,面积是,则这个长方形的周长为      

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已知圆锥的侧面积为,地面半径为,则圆锥的高是       

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直线轴,轴分别交予两点,把绕点顺时针旋转后得到,则点的坐标是           

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已知内有一定点,在角的两边上能否分别找到两点,使为等腰直角三角形?       (填“能”或“不能”)。如果你认为能,在图中画出一个示意图,并说明画法;如果你认为不能,说明理由。

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解方程:

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已知:关于x的方程.
(I)求证:方程有两个不相等的实数根;
(II)当时,方程的两根之和为         ,两根之积为            
(III)若方程的一个根是,求的值;

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如图,在平面直角坐标系xoy中,点,点,将绕着点旋转后得到.
(I)在图中画出;
(II)点A,点B的对应点A’和B’的坐标分别是A’       和B’         ;
(III)请直接写出AB和A’B’的数量关系和位置关系。

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张慧同学给大家出了下面这样的问题,请你解答。
我的袋子里有3枚1角和1枚5角的硬币,如果我任意拿出两枚硬币,你知道前述之和大于5角的概率吗?
(要求:借助化树状图或列表的方法,列举所有等可能的结果,再进行计算。)

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Dear Benter,
  You have been away exactly two weeks today but it seems more like two years to me!
  I’m glad to hear you’ll be back soon. Are you coming directly home, dear? Or do you plan to make some stops   36  the way? I hope you’ll be home in  37 for Patsy’s birthday next Sunday. She is  38 you to show films to her  39 friends.
Patsy keeps asking every day  40 you’ll be back. She says you never  41  that story you were telling her about  42 train that lost its “ toot”(喇叭嘟嘟声). You’d better   43  and think up a good ending  44 it. You know how Patsy is? She  45 be happy until she knows exactly what ­__46  to the “toot” and  47 the little train got it back  48 !
  Everything at home is fine except that we  49 you so much! I’ve been  50 with the spring cleaning. Yesterday I had Cora  51 in to wash the kitchen walls and she did a very good __52 of it. The kitchen looks as though it’s been repainted. I made some new yellow curtains, and they  53 very beautiful.
  I went to see your mother yesterday. Her  54 is all gone and she looks very  55 . Your sister Jean looks wonderful! She has taken off about fifteen pounds since she began dieting. But now she’s complaining that none of her clothes fit!
Hope to see you before next Sunday.
  Love and kisses to you!
                      Yours
                            Lynn
【小题1】A in           B. on          C. at          D. along
【小题2】
A.timeB.factC.allD.the end
【小题3】
A.expecting B.thinkingC.agreeingD.hoping
【小题4】
A.smallB.shortC.littleD.low
【小题5】
A.thatB.whenC.whyD.unless
【小题6】
A.finishedB.stoppedC.suppliedD.included
【小题7】
A.someB.aC.theD.this
【小题8】
A.careB.arriveC.pretendD.hurry
【小题9】
A.onB.forC.atD.in
【小题10】
A.mustn’tB.couldn’tC.won’tD.shouldn’t
【小题11】
A.affectedB.aboutC.happenedD.was
【小题12】
A.howB.howeverC.becauseD.why
【小题13】
A.yetB.tooC.againD.next
【小题14】
A.loveB.thinkC.missD.care
【小题15】
A.workingB.readyC.togetherD.busy
【小题16】
A.stayB.comeC.visitD.drop
【小题17】
A.workB.jobC.thingD.clean
【小题18】
A.showB.feelC.becomeD.look
【小题19】
A.coldB.heatC.healthD.medicine
【小题20】
A.goodB.wellC.niceD.best

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如图所示,要设计一座1m高的抽象人物雕塑,使雕塑的上部(腰以上)AC与下部(腰以下)BC的高度比,等于下部与全部(全身)AB的高度比,雕塑的下部应设计为多高?

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