2022-2023学年天津市和平区中考数学专项突破仿真模拟卷（一模二模）含解析

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2022-2023
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62022-2023
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18Qூ^_`ᫀ௃(1)234+ᦪc᪆GQy=6*+ᦪc᪆GQy=x+2H(2)AACBḄ☢UQ6.xmூᑖ᪆௃(1)e?fᙶ᪗iᐭk6lm234+ᦪc᪆G*noCm?8ᙶ᪗*᪷nqஹ8>x?ᙶ᪗lmstc᪆GH(2)᪷n?3ᙶ᪗lmuv8c=2,ᵫ4ஹ8>?Ḅyᙶ᪗lmBCvzḄ{*nolm.ூ|c௃c(1)e?/(2,4)iᐭ56*m}=8,ᑣ234+ᦪc᪆GQk6*xxx=-4*k=-2,ᑣ?8(-4,-2),2k+h-4e?/(2,4)ஹ5(-4,-2)iᐭ5fcc+/),mீ***—4k+b=-2'k=1cm,ஹ*ᑣ+ᦪc᪆GQkx+2H(2)ᵫ⚪8c=2,ᑣᨴC8Ḅ☢UX2X6=6.⚪⌕ὃ+ᦪ1234+ᦪḄ8?⚪*ᦪC+ᦪc᪆GḄ☢UCc⚪Ḅᐵ.21.tz*6ᑡᑡ¡¢£¤76ᩩᩩ¦§¨©9឵«¬®¯*ᜧ±ᙢ³᫑᫡1¶⍝8¸¹R᝞(*º»¼ᕒᙠ⚔Pᜐ»mÂö⍝ᐭÄA?ᜐḄÅQ60஺*¶⍝DÄB?ᜐḄÅQ30஺*6ᑡ£¤Ç180km/hḄÊËÌᔣÎÏÐ*¤ᜮÒFᐭÄA?ᜐ*¤ÓC?ᜐḄÅ45°,᦮Õ¤ÖᐰØÙᐭ¶ÚាᵨÜ4sÞß*C¤Öàᐰᙠ¶⍝áÏḄß(âãᑮ1å*æὃᦪnV2-1-414,73-1.732).V19⚓/Z52⚓

19ூ^_`ᫀ௃¤Öàᐰᙠ¶⍝áÏḄßQ18s.ூ|c௃ᑖ᪆᝞(J59”.1PH=CH=x,ᵫ180km/h=êë"=50m/s,íD36004C=50X4=200,AH=x-200.ᙠRt/U5”*ᵫN4P”=30஺*23PH=^AH,ᵫo᪀ïðñCDx,òCDᓽlcô⚪.|c᝞(J5”_LC39H.VZC=45°,PHYBC,#.PH=CH,4PH=CH=x.180000180kin/h=----------=50m/s,C=50X4=200,AH=x-200.3600ᙠRS4/W*•.•NZ/W=30°,#.PH=4iAH,(x-200),cmx=300+100õ.1092.4-200'#AB=2AP,AP=2AH,^5=4/4/7=400+400⚜@ᦋ᡽2ᡠ49᪥B3ᡠ89᪥ᐳ◤EF7800Gᐗᦋ᡽3ᡠ/9᪥B1ᡠB9᪥ᐳ◤EF5400Gᐗ.I20⚓/K52⚓

20MIOᦋ᡽1ᡠA9᪥B1ᡠB9᪥ᡠ◤EFᑖQRSTGᐗUM2OW)3ᑜᦋ᡽!889᪥ᐳ10ᡠᦋ᡽EFᵫ[\]^Bᙢ]^ᐳ`abc[\]^deEFfᨵhi11800Gᐗᙢ]^ᢗᐭEFfᨵT4000Gᐗᐸᙢ]^ᢗᐭᑮ4B89᪥ᦋ᡽EFᑖQoᡠ300GᐗB500Gᐗrᐳᨵstuᦋ᡽Uூwxyᫀ௃M1O1200Gᐗஹ1800Gᐗ|M2Oᐳᨵ3u|}|ᦋ᡽A9᪥3ᡠB9᪥7ᡠ|ᦋ᡽A9᪥4ᡠB9᪥6ᡠ|ᦋ᡽A9᪥5ᡠB9᪥5ᡠ.ூᑖ᪆௃M1O᪷>“ᦋ᡽2ᡠA9᪥B3ᡠB9᪥ᐳ◤EF7800Gᐗᦋ᡽3ᡠA9᪥B1ᡠB9᪥ᐳ◤EF5400Gᐗ”ᑡyᫀ;M2O⌕᪷>“[\]^deEFfᨵhi11800Gᐗᙢ]^ᢗᐭEFfᨵT4000Gᐗ”ᩭᑡfᨵᑨfᨵ`Ḅᦋ⌼.ூ௃M1Oᦋ᡽}ᡠA9B}ᡠB9᪥ᡠ◤EFᑖQxGᐗByGᐗ2x+3j=7800ᵫ⚪3x+y=5400x=1200y=1800y|ᦋ᡽}ᡠA9᪥B}ᡠB9᪥ᡠ◤EFᑖQ1200GᐗB1800Gᐗ.M2O+,ᦋ᡽A9᪥aᡠᑣᦋ᡽B9᪥M10-aOᡠ,(1200-300)^+(1800-500)(10-«)<11800ᵫ⚪|300a+500(10-a)>4000a>3a<53

21(1)ᑨ஺E஺஺Ḅ¼½ᐵ¿ÀÁÂᳮᵫ(2)cḄÄ«R=5,S஻C=g,EFḄ¶.8ூwxyᫀ௃(1)ÊÂË᪆(2)-3ூᑖ᪆௃(1)ÌÍᙊÏBᑗ°ᑭᵨÑ<ÊÒ=90஺(2)i஺²8c"4BD=k,CD=2k,63BDஹCDḄ¶᪷>Ḅ☢Ö×ᑮ஺Ḅ¶ᵫØÙÚᳮᑮḄ¶᪷>ÛÜÚᳮᑮ04=0!OE,OEḄ¶ÝÞᑮ8EḄ¶᪷>®ßḄឋáᑮ8Ò=2,᪷>ØÙÚᳮᓽᑮâã.ூ௃|(1)ÊÂ|᝞¥ÌÍ஺஺BD,R஺OḄ«ZADB=Z90°,#.BD±AC.•9AB=BC,#.AD=DC.#OA=OB,#.OD//BA,•:DELBA,#.DE±OD,DE1R஺஺Ḅᑗ.(2)i஺²ZW_LBCH஺஺ḄÄ«é=5,y,#.BC=IO,4BD=k,CD=2k,:.BC=#k=l0,I22⚓/K52⚓

22k=2y[5>#.BD=2y/5>CD=4B:OH=yJoD2-DH2=3'#DE±OD,DHLOE,#.OD2=OH-OE,•:DELAB,#.BF//OD,#.XBFEsl\ODE,.BFBE"'OD~~OE'10BFTSPT=25*3#.BF=2,,--8#.EF=^BE2-BF2=2-í⚪ὃîïᙊḄ¼½ᐵ¿ῪḄឋá©é.ð⚪ñᨵᚖòÊᙊḄᑗó⌱ᵨÑ<ᩭ;<ÊÂÞ®ᐵḄõö÷ø᪷>ᡠùᩩû;<〉ðýþÿᑭᵨ☢Ḅᨵ.23⚓/52⚓

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24b=l1(2)\$4)Ḅ᪆F:4(0,1),D(3,-),<5I<2,ெ᝕+6=5$Ḅ᪆Fy='x+l,\P(f,0),#.MCt,L+l),.*.PA/=If+l,"CDLx-:.PC=3-t,:&PCMCPCPMC(3-Z)(-r+1),22211311o2525**•5APGW=—©■1—t—=—(—)~H----:•l\PCM☢ḄXZ—I442421616τ3]](3)\*OP=tf./A/,NḄ«ᙶ᪗F\A/(t,—Z+1)»N(I,--ᔆH-----1+1),24431113o5#.MN=;;/+—+1--t-\=;;Z2+-/,CD=-,᝞b/A/ஹ஺ஹDஹNF⚔/Ḅef442442395395ZgefMV=CD,ᓽ;;/+—£=—.W=-39,J;;®+—£=;¯°ᦪ442442᪷ᨵ`ᙠZ,ab/஻ஹ஺ஹ஺ஹNF⚔/ḄefZgef.]311(3),#0P=l,:•ஹM,NḄ«ᙶ᪗FZ,\A/(/,—E+1),N(/,----/-H-----/+1),244.3111,39±522442442395জ᝞1,᝞b/MஹCஹQஹNF⚔/ḄefZgefMN=CQ,ᓽ——/+—=—,442395•••W=-39,••—*+=¯°ᦪ᪷ᨵ`ᙠ´442395ঝ᝞2,᝞b/A/ஹCஹDஹNF⚔/ḄefZgef...4/28,ᓽ;/——{=-,442.”9uvT(·X¸¹)...ºᡝ9+w[¼,b/”஺ஹDஹNF⚔/ḄefZg66ef.25⚓/52⚓

2526⚓/52⚓

262022-2023
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322022-2023
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51N52⚓/R52⚓