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教案备课库《》真题及答案
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如图菱形ABCD中∠ABC＝60°AB＝4E是BC的中点点P是对角线BD上的一个动点连接PECP则△CPE的周长的最小值为．
1分﹣CanIhangoutwithmyfriendstonightMum? ﹣Ofcoursebutyoubehomeby8:00o'clock. A.can B.must C.may D.might
若点Aab在反比例函数y＝﹣的图象上则代数式ab﹣1的值为
10分 66. 67. 68. 69. 70.
若将点A13向左平移2个单位再向下平移4个单位得到点B则点B的坐标为
1分﹣﹣﹣strongcountryourmotherlandis!Wearesoproudofit. ﹣﹣﹣Yes.Itisdevelopingveryfast. A.What B.How C.Whata D.Howa
若mn是一元二次方程x2+x﹣2＝0的两个根则m+n﹣mn的值是
若对于任意非零实数a抛物线y＝ax+2x﹣1总不经过点Px0﹣3x0﹣5则符合条件的点P
先化简再求值÷﹣其中x＝2．
直线y＝﹣x+1不经过第象限．
5分请阅读下面这篇文章根据所提供的信息完成下面表格把答案写在答题卡指定的位置上. InformationCard 81. 82. 83. 84. 85.
1分Mostofmyclassmatespreferloudmusictheycandanceto. A.what B.who C.whom D.which
下列命题是真命题的是
下列图形中是中心对称图形但不是轴对称图形的是
如图平面直角坐标系中正方形OABC的顶点A08C80．点D为AB边上一动点不与端点AB重合连接OD作线段OD的垂直平分线EF交边OABC于点EF连接ED过点D作DM⊥ED交BC于点M． 1如图1当点D为线段AB的中点时求线段DM的长． 2如图2若正方形OABC的周长为C1△BMD的周长为C2记m＝试证明m为定值． 3在2的条件下构造过点C的抛物线y＝ax2+bx+c同时满足以下两个条件①4a+3b+c＝0②当m≤x≤9﹣m时函数y的最大值为m求二次项系数a的值．
为迎接体育中考九年级1班八名同学课间练习垫排球记录成绩个数如下4038423545404242则这组数据的众数与中位数分别是
如图在等腰直角△ABC中∠C＝90°D为BC的中点将△ABC折叠使点A与点D重合EF为折痕则sin∠BED的值是
如图D为⊙O上一点点C在直径BA的延长线上且∠CDA＝∠CBD． 1求证CD2＝CA•CB 2求证CD是⊙O的切线 3过点B作⊙O的切线交CD的延长线于点E若BC＝12tan∠CDA＝求BE的长．
在一个不透明的口袋里装有2个白球3个黑球它们除颜色外其余都相同．现随机从口袋里摸出1个球是白球的概率为．
我市在创建全国文明城市的过程中某社区在甲楼的A处与E处之间悬挂了一幅宣传条幅在乙楼顶部C点测得条幅顶端A点的仰角为45°测得条幅底端E点的俯角为30°若甲乙两楼之间的水平距离BD为12米． 1甲楼比乙楼高多少米 2求条幅AE的长度．结果保留根号
1分HightechnologywasusedinEURO2016tothematcheswerefairenoughinFrance. A.makeup B.makesure C.comeout D.comeover
下列运算中正确的是
下列计算正确的是
下列命题中为真命题的是
1分WelikeourEnglishteacherverymuch.Healwaysmakeshisclassinterestingand. A.lively B.easily C.happily D.actively
10分LastnightIwasdrivingfromHarrisburgtoLewisburgdistanceofabout80miles.ItwaslateandIwasdrivingfast. AtonepointalonganopenhighwayIcametoacrossroadwithatrafficlight.Iwas46ontheroadbynowbutasIcamenearthelightitturned47andIbraked急刹车tostop.Ilookedleftrightandbehindme.Nothing.NotacarnosuggestionofheadlightsbutthereIsatwaitingforthelightto48theonlyhumanbeingforatleastamileinany49. IstartedwonderingwhyIrefusedtoruntheredlight.Iwasnotafraidofbeingcaughtbecausetherewas50nopolicemananywherearoundandtherewascertainlyno51ingoingthroughit. Muchlaterthat52afterI'dmetwithagroupinLewsisburgandhadclimbedintobedmidnightthequestionofwhyI'dstoppedforthatlight53me.IthinkIstoppedbecauseit'spartofacontract契约weallhaveforeachother.It'snotonlythelawbutit'sanagreementwehaveandwetrusteachotherto54therule:wedon'tgothroughtheredlights. Wedowhatwesaywe'lldo.Weshowupwhenwesaywe'llshowup. Iwasso55ofmyselfforstoppingforthatredlight.AndasnoonewouldeverhaveknownwhatagoodpersonIwasontheroadfromHarrisburgtoLewisburgIhadtotellsomeone. 46.A.late B.alone C.worried D.afraid 47.A.green B.yellow C.red D.dark
10分 56.Inthepassagethewritergivesuspiecesofadvice. A.ten B.eleven C.twelve D.thirteen 57.Theunderlinedpartwhensomethingdoesn'tgoyourwayprobablymeans. A.whenyougetlost B.whenyouareonawrongway C.whenyoumeetwithsomethingdifficult D.whenthingsdon'tgoasyouimagine 58.Ifyourunaroundtheoutsideofyourhousefivetimesandyourhouseisacircleof260meterssoyouwillrun. A.1300meters B.1300kilometers C.1360meters D.1360kilometers 59.AsfordoingwithangerwhichofthefollowingisNOTmentionedinthepassage? A.Talktoafriendyoubelieve B.Getahug C.Pullweedsinthegarden D.Haveafightwithafriend 60.Thepassageismainlyabout. A.howtodealwithyouranger B.lettingangerbethebossofyou C.drinkingmorewaterwhenyouareangry D.doingsomethingactivewhenyouareangry
下列立体图形中主视图是圆的是
1分Looksomanyyoungmenwiththeirmobilephonesontheunderground. A.played B.areplaying C.haveplayed D.willplay
1分MycousinknewlittleaboutthefamousfilmCinderellahesawityesterdayevening.Helovesthefilmverymuch. A.if B.when C.unless D.until
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