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        1. }Ŀ݆҃Ҫͣͬһλһҹr̵_(d)҃ɴλĕrgքe4Сrc2СrһҴλrȴһΕrgĸʣ

          𰸡

          ԇ}֪ɴ_(d)ĕrgg^ͣĕrgtҪȴҪһҴλr횵ȴһΕrgĸʼӋһ_(d)ĕrgǡһ߀]x_˼о¼

          ԇ}ױ絽4Сr(ni)ȴױ2Сr(ni)ȴ

          xyքeʾ҃ɴ_(d)λĕrgtһ

          ҴλrȴһΕrgijҪl飭2xy4

          Dʾƽֱ(bio)ϵ(ni)(xy)пܽY(ji)߅L24

          ¼AһҴͣλrȴһΕrgĿܽY(ji)ӰֱʾɎ׺θ͹ʽã

          P(A).һҴλrȴһΕrgĸ.

          (x)ϵд
          P(gun)(x)}

          ĿД(sh)W(xu) Դ

          }Ŀx4-4(bio)ϵc(sh)

          Aÿһc(din)Ŀv(bio)ֲ׃M(bio)׃?yu)ԭ?/span>2õ

          1ą(sh)

          2(bio)ԭc(din)Oc(din) SSOS(bio)O(bio)ϵֱ֪ĘO(bio)̞քeֱϵһc(din)x

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) Դ

          }Ŀһe360m2ľΈҪΈصһffSޣɹõfLҪ½fȉҪһȞ2mM(jn)D2ʾ֪fľSM(fi)Þ45Ԫ/m,‰r180Ԫ/m, O(sh)fLȞλ ޽˾Έ؇ĿM(fi)ÞλԪ.

          ʾĺ(sh)

          ԇ_,ʹ޽˾Έ؇ĿM(fi)ССM(fi)

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) Դ

          }ĿijW(wng)j(lu)INT˽y(tng)ӋijоW(wng)ѡp11ijԌľW(wng)ُrSC(j)ԓЮ(dng)60W(wng)ѵľW(wng)ُ~rõ”(sh)(j)y(tng)ӋD

          W(wng)ُ~^2ǧԪͶx顰W(wng)ُ_(d)ˡW(wng)ُ~^2ǧԪͶx顰ǾW(wng)ُ_(d)ˡ֪ǾW(wng)ُ_(d)ˡcW(wng)ُ_(d)ˡ˔(sh)ǡÞ3:2.

          1ԇ_ֵa(b)ȫlʷֱֲD

          2ԇINTM(jn)һ˽@60W(wng)ѵُw򞣬ġǾW(wng)ُ_(d)ˡW(wng)ُ_(d)ˡ÷֌ӳӵķ_5@5SC(j)xȡ2M(jn)І{(dio)飬tǡxȡ1W(wng)ُ_(d)ˡ1ǾW(wng)ُ_(d)ˡĸǶ

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) Դ

          }Ŀij؞P(yng)Їy(tng)Ļeky(tng)ĻRӡSC(j)ԓqȺȡһĘӱӱ(sh)(j)ֳM ٌ䰴ҵքe̖MMML˘ӱlʷֱֲDش}rM(jn)нy(tng)Ӌ󣬽Y(ji)±ʾ

          ֽM

          ش_˔(sh)

          ش_˔(sh)ռMı

          M

          M

          M

          M

          M

          ŷքe, ֵ

          ƏMش_÷֌ӳӵķȡˣtMÿM(yng)ȡ

          ڢƵǰ£QȡSC(j)ȡCl(f)\(yn)ȡеM˫@\(yn)ĸʣ

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) Դ

          }ĿS(ji)˔(sh)࣬(do)εͬr̎ҲRµ(zhn)ijIغξc(din)ڰ߅ɵصc(din)̎O(sh)һվc(din)Dɵ10Ļվ^غɵҕǞO(sh)

          1քeʾȡֵ

          2ijһr̫cc(din)ͬһֱ˕rصֱľxֵ

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) Դ

          }Ŀ֪AcͬĽc(din).

          1Aķ̣

          2֪c(din)SϵĄc(din)  քeЈA c(din).

          ֱķ

          ^c(din).

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) Դ

          }ĿDֱABC-A1B1C1ABCCA=CB=1BCA=90AA1=2MNքeA1B1A1Ac(din)

          1L

          2cosֵ

          3CA1BC1M

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) Դ

          }Ŀ֪EA^c(din)ֱcEAc(din)

          1c(din)ƽ־ԇֱķ

          2O(sh)cM1ЗlֱƽеֱcEAc(din)cEAc(din)cEAc(din)C

          鿴𰸺ͽ>>

          ͬ(x)Դ