34n42222134n422221111學(xué)年四省成都市侯區(qū)八年（下）期數(shù)學(xué)試卷一選題本題10個(gè)小，小3，30分每題有個(gè)項(xiàng)其只一符合目要，案在題上2021A

BC

DABxDxAABBBDCABC

DAC

BDcnA5B2aa+b0ABCAC

BDA21AA4

A0B2ABCDBCEECDMA8B5Aa0b0BP2+1PCDyyxx2y3ABC1x3Dx13

2222二填題本題個(gè)小題每題4分共分，案在題上11x+22

x+2+ABCCACBACBDDEEFGDGACHCHDABCDCADCDE三解題本題個(gè)小題共分，解過寫答卡）+13+42

1

+1ACEBDABCD

ABCD20

kmkmhxOy21AB9021ABC32yCDCBF1ED2GABCDBDGFGFGFAMHAEABMHAB31

2a2a四填題本題個(gè)小題每題4分共分，案在題上x+9kx

3bABCADBACBDADBDACEFDFAB10BDFAB4AD2/sABCEFtEDEADBEAB910ABC75AD+BE+

DE2

121211222121211222五解題本題個(gè)小題共分，解過寫答卡）

x

x

m+x+

+xm1x+

x2xx

k1kABCECFFECF

11BCACB90ACECBCGFGECF2ACBCBFAE390

BFxxy1xOyl+6BBl+bClly1l

2DABDEDDFD2FAEDEyGDGF

222222學(xué)年四省成都市侯區(qū)八年（下）期數(shù)學(xué)試卷參考答案一選題本題10個(gè)小，小3，30分每題有個(gè)項(xiàng)其只一符合目要，案在題上AA6DD8A9D二填題本題個(gè)小題每題4分共分，案在題上11250144

三解題本題個(gè)小題共分，解過寫答卡）+13+423+x2+1x；2①x②xx

1

+1

x0x0xx

+1+1ACEBDABCD

ABCD20ABCDBDADBDEBED

2

ABCDAC

2

4

kmkmh//

xx/xOy21AB9021ABC32y

C22

ABC

53Pt2|25tt00CDCBF1ED2GABCDBDGFGFGFAMHAEABMHAB31

ABCDBADDDAD2GCFxDCG90xGFGCFGFCxADCDADGCDG45DGDGADGSASAGGFDCGDAGxAGD18045x45xDBCGFB454545+90FHAH

2222222222221212222222222222121231

FCAEFMGAGFMGAFAMAHFH

AD+

FC

CH

DHFC+CHCH16+CH

四填題本題個(gè)小題每題4分共分，案在題上2027823125五解題本題個(gè)小題共分，解過寫答卡）

x

x

m+x+

+xm1x+

x2x2

11212212121112122121212xx

k1k+x2x2xtxt2k+xkx+xkk

2

ABCECFFECF

11BCACB90ACECBCGFGECF2ACBCBFAE390

BFxxy90BCGCGACEECFACBECFACE+ECFGCFECFGCF

ECFGCFSAS2GKABK1ECFGCFAEBGABCACBA30ABG2BGeq\o\ac(△,Rt)60BK1GK

2eq\o\ac(△,Rt)

3ACE90ABKCK

222222122222222212222

BK

eq\o\ac(△,Rt)ABCKBH

BHKHyGHy2HFx1ECFGCF5eq\o\ac(△,Rt)FGHFH+GHFG5y++1x+30y1xOyl+6BBl+bClly1l2DABDEDDFD2FAEDEyGDGF

21222122+6xA606llC6ly+bClyx2Dm+62+6mD22DHF45OAOB6EDFAED+ADE135+HDFHDFHFDAASHFAD4

HDOACOB90

111111COBABOHBFABCBFHBHFHHDAB+AD

+4

iiD（nyx+6n1+6D1DDMxMFNDMNDEDFDME+FDN90MDE+DEMFDNDEMFDNDEMAASFNDM5DN1FNBN1EBMNDN5+14①FO3ODGFy，4y

x

x3

x2

1222222222222222221233333333122222222222222222123333333333311②DGDOFDGFDGO45GFGD