四川巴中中考数学2020年试题答案或解析

23523623235236236326767222020年四川巴中市中考学试卷一选题本题12小，小4分共分．每题出四选中只有项符题要的A3B

C3DAa+aa

Ba

Caaa

Da60A3.610

B3.610

C10

D4.8A6B7CD925212833.6A8.6B9CDABCBAC120ADBACAD3CEA9B8CD7x2a3+a+10aA1B12D0

11m3a25311m3a253A4

B

C5

Dy+ba021yy

kx0A02BxCx10ACAB

OA

B2C

Dblogb28log83loglogA1B2D4412AB4ACBD

1213212132PADACBDPFPFMNBD+S56A1

B2

C3

D二填题本题6小题每题3分共18分，把案在中横上13a+3a14

x15x

m161317

18AB2

1111111111111112222BxCD

三解题本题小，84分解应出必的字明证过或算骤192xx43

x20ABC1eq\o\ac(△,A)eq\o\ac(△,)BCAB2eq\o\ac(△,A)eq\o\ac(△,)BC180ABCB3AB21

29485952331840524645435552663645

m1mn23642214060960060129710330kg/

25kg6/23BC1BACPPBC250Bcos310.86tan311.7324AOCDABEACOA3

12PACEEP25yax++ByCMBCP0OBOC4OA12PCMPOMPM

3SP△

2323623232362353462020年四川巴中市中考学试卷参考答案与试题解析一选题本题12小，小4分共分．每题出四选中只有项符题要的CAaB

a

CaaDaaDC633.621DBACADBACBADCAD

BAC60DEBADADE60BAC120

222222122222222122253AED60ADEAEDAD33+58x23++10+10a0Dx10+310x4.55yx210ACBAOB2

OBOAloglog81341

AODAODAOPDOP22222AODAODAOPDOP222222221212COD

ABCDOAOCODBD288AB44

BC16矩形4△矩形

OAOD4+S+ODPE+PF4PE+PF△△△

2

PEPE+PF0+PF+S+PFPEPF+PE+PE+PEPE2

PE

AEPPAEDPF

C二填题本题6小题每题3分共18分，把案在中横上

3222223222221336+3aaaaa14xx1x115x+3xx10x0xx0m0x1+3m1631217618072072018yF2yFAFEOEOF

222212222212ykx+k+1kyx+yxx3C3D3yx1

D340yx1

xyx1三解题本题小，84分解应出必的字明证过或算骤19

1+3

+322x5+602x20x33

x3202

1222222212222222x212x120eq\o\ac(△,A)eq\o\ac(△,)2eq\o\ac(△,A)eq\o\ac(△,)4

3AB54

﹣＝cm21m842

3

最大最大22y120802aa

37.5aa39533010a25a110k1100W42116205823MAC60BAC29ABC119PBCABCABP5921PBCC90PBC31BPx

AP

CP

x575724OAOCOCAACOACOCADEADDE2ACBOA

BAC

BAC3ECBBEC30ACBEACBPEACE

PBEACEACE2510OAOB24OA24002

2

2222MM21OMPOMPOCPMx