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教案备课库《2016暑假作业（五）-第九章压强》真题及答案
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AnothertwosubwaylinesarebeingbuiltinHarbininordertoimprovethe_________systemandmakepeople’sliveseasierinHarbin.A.technology B.transportation C.television
先化简再求值其中a=3．
一What’swrongwithMike?一Ihadabadcold.Mymothertoldmetodrink_____waterandhaveagoodrestA.alotB.plentyofCmany
在一个不透明的箱子里装有红白黑各一个球它们除了颜色之外没有其他区别．从箱子里随机摸出1个球放回搅匀再随机摸出1个球请你用画树状图或列表的方法求两次摸出的球颜色相同的概率．
—ThefinalexamiscomingI’mworriedaboutit.—Takeiteasy.________nervousyouare__________mistakesyouwillmake.A.Themorethemore B.Thelesstheless C.Thelessfewer
Manykidsaremade_______________tolotsofclasses.Theymakestudents________tired.A.togofeel B.togotofeel C.gofeel
—Jennydon’tkeepthewindows_____________.Itistoohotinside.—Ok.Weshouldletfreshair_____________in.A.closecome B.closedcome C.opencome
如图在Rt△ABC中∠ACB=90°∠B=30°将△ABC绕点C顺时针旋转得到△DEC使点D恰好落在AB边上．取DE的中点F连结CF．求证四边形ACFD是菱形．
如图在平面直角坐标系中二次函数y=ax2+bx+c的图象的交x轴于A-10B两点其顶点C0-2．点P是直线BC上任意一点设点P的横坐标为m．1求二次函数的表达式和点B的坐标．2用含m的代数式表示点P的坐标．3将线段PC绕点P旋转90°得到线段PC’在抛物线上是否存在点Q使以CPC’Q为顶点的四边形是正方形如果存在求m的值如果不存在请说明理由．
—Couldyoutellme_____?—Athome.Iwenttobedverylateandfinisheditintheend.A.whendidyoudrawthepictureB.whenyoudrewthepictureC.whereyoudrewthepicture
如图a∥b在Rt△ABC中∠BAC=90°直角顶点A在直线a上若∠1+∠B=70°则∠2的度数为
在数10-1-2中最小的数是A．1 B．0 C．-1 D．-2
We’regoingtoAmericathissummervacation.Wehaveenoughtime_____wehaveenoughmoney.A.ontheotherhand B.asaresult C.eventhough
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