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10. D4cCǰAcֱAB=4tDӰֵe A. 4-2 B. 4-4 C. 2-2
D. 2-4
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}}M24ÿС}3֣ 11 .
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12. Ľ
.
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13⌑һDcֱ ƽеһκ(sh)P(gun)ϵʽ
.
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14.
D5ǡ2006128ĺгס˿׃ry(tng)ӋD. гס˿ڔ(sh)SeĔU(jng)İl(f)չ. 2003^(q){(dio)eL10ס?c)˿ڱ?996 fˣ_fˣ.
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15D6ABCDˮƽõ݆PҕDσɗlഹֱֱһС݆PɝLӣԓСKͣӰ^(q)ĸʞ .
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16. D7ABCD,CEƽ֡ACD,ABE,ACD=70,t1ĶȔ(sh) .
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17D8,ABǡOֱ,ACǡOо,cA,AB=8,AC=6,tBC= .
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18D9ڡ ABCDǾACBDcOEBC߅ϵcOE=2AD=5t ABCDL
.
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}}M66֣
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 ϢشІ} 1(j)1lνy(tng)ӋDaӰͿ(bio)Ɣ(sh).
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2Їwڵ15ö\ϹZ öƣн ösռ@Á\ƿ(sh) %_0.1%ӳνy(tng)ӋDϣD10.2@εĈAĽǼs
㣨_ȣnF@Ƽsռ@Á\ƿ(sh) %_0.1%.
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21.}M10֣ijXܛ_l(f)˾ƸˆTϢ£ Ϣһ ƸܛNܛO(sh)ӋˆT120 Ϣ ܛNˆTY1800Ԫ/£ܛO(sh)ӋˆTY3000Ԫ/£ ԓ˾ÿ¸o@ƸˆTĹY~300000Ԫԓ˾(yng)ƸܛNܛO(sh)ӋˆT?
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22.}M10֣F(xin)D11ʾăɷNɴu.
Ո@ɷNɴuиx2KƴһµεذD,ʹƴ䁵ĈDSQDλČQDΣʾD11.1.ҪքeڈD11.2D11.3иO(sh)ӋһNcʾDͬƴ@ɷNƴͬһSQDČQD.
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23.}M12֣֪E߅L1ABCDǾBDһccEDcBc\ӣcBDغϣ^cEֱMNƽDCADMBCNEFAEECBCBLF.
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2cE\ӵ^УD12.1D12.2߅AFNMeǷl(f)׃?Ոf.
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24.}M14֣D13֪タ (jng)^O(0,0)A(4,0),B(3, )cBY(ji)AB^cBBC SԓタcC.
1 @lタĺ(sh)P(gun)ϵʽ.
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2 ɂcPQքeOAcͬrl(f),ÿ1λLȵٶ\. cP0AAc\cQ۾ABC·Cc\. O(sh)@ɂc\ӵĕrg ) (0 4)PQAeӛS.
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Sc ĺ(sh)P(gun)ϵʽ
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(dng) ֵrSֵֵǶ٣ָ˕rPQAΠ
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Ƿ@ӵ ֵʹáPQAֱ?Ոֱӌ˕rPQc(bio)Ոf. 2007ЮI(y)W(xu)I(y)ģMԇ
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һx} BDACA BCBCD } 114 12. 2 13. 𰸲Ψһ(:y=x+1,y=x-3ȵ.) 14. 107 15. 16.
35 17. 10 18. 18 } 19ɣ1c2MɵĴ(sh)ĺͣxMϿɅձ}(bio)(zhn)o֣. +
1֣
4֣
6֣
8֣
10֣
ע: (sh)ʽ1c3ĺ͞ (sh)ʽ2c3ĺ͞ . 201D_.
3֣ 2316, 165, 38.6(38.4), 139, 13.6(13.4) 8֣ 21O(sh)ԓ˾ƸܛNˆTxˣܛO(sh)ӋˆTy 1֣ } 6֣ @̽M 9֣ ԓ˾ƸܛNˆT50ܛO(sh)ӋˆT70. 10֣ עⷨ(bio)(zhn)o. 22ăɂD,һDֻSQ(ֻČQ)Ľo4,һDSQDČQDεĽo6.𰸲Ψһ,O(sh)ӋDH.
23.1 ߅ABCDΣBDnjǾMNDC ߅AMNB߅MNCDǾ
MED͡NBEǵֱ.
AME=ENF=90AM=BN=NE. 3֣ EFN+FEN=90.
4֣ ֡ EFAE AEM+FEN=90㣬 5֣ EFN=AEM
6֣ AMEաENF.
7֣ 2߅AFNMe]аl(f)׃.
8֣ ?(dng)cE\ӵBDcr ߅AFNMǾS߅AFNM= . 9֣ ?(dng)cEBDcrcE\ӣccBDغϣ^߅AFNMֱ. ɣ1֪AMEաENF. ͬD12.2AMEաENF. ME=FNAM=EN. AM+FN=MN=DC=1.
11֣ @r S߅AFNM= (AM+FN)?DC= ?1?1= . Cϣ??֪߅AFNMeһֵ. 12֣ 241 タ (jng)^O(0,0)A(4,0),B(3, ) . . 2֣ タĺ(sh)P(gun)ϵʽ . 3֣ (עタĺ(sh)P(gun)ϵʽϘ(bio)(zhn)o.) 2 ^cBBE SEtBE= AE=1AB=2. tanBAE= áBAE =60.
4֣
?(dng)cQھAB\ӣ0 2rQA=tPA=4- .
^cQQF SFtQF=
S= PA?QF 
. 6֣
?(dng)cQھBC\2 4rQcĿv(bio) PA=4- . @rS= .
8֣ ڣ?(dng)0 2r . (dng) =2rSֵֵS= . 9֣ ?(dng)2 4r
SS pС. (dng) =2rSֵֵ . Cϣ??(dng) =2rSֵֵ . 10֣ PQAǵ߅. 11֣ . 12֣ (dng)cQھAB\ӕrҪʹáPQAֱʹáPQA =90@rPA=2QA4- =2 . PQc(bio)քeP1( ,0)Q1( , ). 13֣ (dng)cQھBC\ӕrQPcęM(bio)քe5- ҪʹáPQAֱΣt5- =  PQc(bio)քeP2( ,0)Q2( , ). 14֣ (עⅢϘ(bio)(zhn)o.)
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