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1/102016-2017A100(10,330,,,)1.,()ABCD2.,()A.333a2aaB.532aaaC.923aa-D.a2aa2233.0.0000000004,()A.4104.0B.9104.0C.10104D.101044.,()ABCD5.,,AOB=ABO()A.SASB.ASAC.SSSD.AAS6.,ABCDO,OMAOC,ONOM,OAC=70,CON()A.65B.55C.45D.357.mx2-x2,m()A.1B.1C.4D.48.(A.B.C.D.9.,ABCA=30,C=90,ABACDABEA.DE=DCB.AD=DBC.BC=AED.AD=BC2/1010.,,()m+mm-1A.0B.1C.mD.2m(4,4,16,)11.2a5anm,n-ma__________.12.,C=90,l=2,CD=4,DAB________.13.22b-aba,24x5x=_______.14.:,400,______,____________().(6,54,)15.(12,6(1)202-32--2107-311-(2):()()()232242510xyxyxy16.(6):x21x-y2xx2,x=251y=25.17.(8),ABCEFDBCDF(DC),A=E,ABEFBD=CF.(1):ABCEFD(2)ACDE.3/1018.(8),,,yxx/kg012345y/cm182022242628(1)yx,________,__________.(2)3kg,______cm,_____cm.(3)y(cm)x(kg)36cm,kg?()19.(10)4,lcm2cm3cm4cm,1,3cm2,1,(1)((1,2,3))(2)(3)4/1020.10:BCD,BDC=90,BFDBCCDF,CCEBFE,CEBDA.(1)1,BD=CD.:BF=ACBFCE(2)2,DDHBCBFG,H,GGNBCDCN,DFCN,12GFEDBCAHN5/10B50(5,4,20,)21.x=1,ax3+bx+12017,x=-1,ax3+bx+1_____.22.,ABCD,EFCD,ABC=45CEF=150,BCE____222423.a,bABC,abb4a1029ba22________.24.,ABC,ADBC,DAD=BD=5,CD=3,PBBCC,PPQBC,BA-ACQ,DQCQ,ADQCDQ,BP_________25.:22219165431115432514321:200202204206+16=a2,a=_______.(3,30)26.(8)(1):122124-1232(2)m,nmxn-x-x2x21,2mnn2m224,mnm-n.6/1027.(10)1,ABCD,AB=12cm,BC=l0cm,PA,ABCD,DQD,DCBA,APQ,lcm2cm,aPQ,2cm45cm(PQ,),2APDs(cm2)x()(1)a(2)Py1(cm),Qy2(cm),,y1y2x()(3)PQBC,xPQ3cm?
本文标题:成都市高新区2019学年七年级下期末数学试题(含答案)精校版
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