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        1. 2007•BƸۣ|hСˮ֮l(xing)u(y)ijˮ̵һΕr(sh)g(ni)N(xio)˸Nͬr(ji)ˮ(xing)75lr(ji)N(xio)۔(sh)±
          r(ji)Ԫ2025303540507080100150
          N(xio)۔(sh)l13967316642
          ´M(jn)؛r(sh)㽨hԓ̵ꑪ(yng)M(jn)r(ji)    Ԫˮ(xing)朣
          𰸡75lˮ(xing)朵ăr(ji)MһM(sh)ڸM(sh)еı(sh)Ǒ(yng)ԓM(jn)ƷN
          ⣺(yng)ԓM(jn)r(ji)50Ԫˮ(xing)?yn)ϱԿu(mi)󲿷˶ϲg@ԑ(yng)ԓM(jn)
          50
          c(din)u(png)}ҪW(xu)(du)(sh)⼰ڌ(sh)Hе\(yn)ã
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          P(gun)(x)}

          ĿД(sh)W(xu) (li)Դ2007ȫ(gu)п(sh)W(xu)ԇ}R߅Ρ06棩 }

          2007•BƸۣDֱ(bio)ϵOABCc(din)Oc(bio)ԭc(din)غc(din)AC(bio)SOA=60cmOC=80cm(dng)c(din)Pc(din)Ol(f)5cm/sٶxSc(din)C\(yn)(dng)_(d)c(din)CֹͣO(sh)c(din)P\(yn)(dng)ĕr(sh)gts
          1^(gu)c(din)P(du)ǾOBĴc(din)TPTL(zhng)ycr(sh)gtĺ(sh)P(gun)ϵʽ(xi)׃tȡֵ
          2c(din)P\(yn)(dng)^(gu)(dng)c(din)OP(gun)ֱAPČ(du)Q(chng)c(din)O'ǡڌ(du)ǾOBϕr(sh)˕r(sh)ֱAPĺ(sh)ʽ
          3̽APTc(din)c(din)ġAPTeܷ_(d)OABCeՈ(qng)f(shu)ɣ

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) (li)Դ2007ȫ(gu)п(sh)W(xu)ԇ}RΡ04棩 x}

          2007•BƸۣDڡABCУAB=AC=2BAC=20°(dng)c(din)PQքeֱBC\(yn)(dng)ʼK֡PAQ=100°O(sh)BP=xCQ=ytycx֮gĺ(sh)P(gun)ϵÈD¿Աʾ飨

          A
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          鿴𰸺ͽ>>

          ĿД(sh)W(xu) (li)Դ2007ȫ(gu)п(sh)W(xu)ԇ}Rһκ(sh)04棩 }

          2007•BƸۣij؅^(q)һNƷy1f(wn)(yng)y2f(wn)cr(ji)xԪ/քeƝMк(sh)P(gun)ϵʽy1=-x+60y2=2x-360r(sh)ֹͣ(yng)(dng)y1=y2r(sh)ԓƷăr(ji)Q(chng)鷀(wn)r(ji)Q(chng)鷀(wn)
          1ԓƷķ(wn)r(ji)c(wn)
          2r(ji)ʲôԓƷڹ(yng)
          3(dng)ڹ(yng)r(sh)ͨ^(gu)(du)(yng)ṩr(ji)a(b)N(li)߹؛r(ji)߹(yng)F(xin)Ҫʹ(wn)4f(wn)(yng)(du)ÿƷṩԪa(b)Nʹ(yng)

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) (li)Դ2007ȫ(gu)п(sh)W(xu)ԇ}Rһκ(sh)03棩 }

          2007•BƸۣDֱ(bio)ϵOABCc(din)Oc(bio)ԭc(din)غc(din)AC(bio)SOA=60cmOC=80cm(dng)c(din)Pc(din)Ol(f)5cm/sٶxSc(din)C\(yn)(dng)_(d)c(din)CֹͣO(sh)c(din)P\(yn)(dng)ĕr(sh)gts
          1^(gu)c(din)P(du)ǾOBĴc(din)TPTL(zhng)ycr(sh)gtĺ(sh)P(gun)ϵʽ(xi)׃tȡֵ
          2c(din)P\(yn)(dng)^(gu)(dng)c(din)OP(gun)ֱAPČ(du)Q(chng)c(din)O'ǡڌ(du)ǾOBϕr(sh)˕r(sh)ֱAPĺ(sh)ʽ
          3̽APTc(din)c(din)ġAPTeܷ_(d)OABCeՈ(qng)f(shu)ɣ

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) (li)Դ2009ʡSʯʮп(sh)W(xu)ģMԇ棩 }

          2007•BƸۣij؅^(q)һNƷy1f(wn)(yng)y2f(wn)cr(ji)xԪ/քeƝMк(sh)P(gun)ϵʽy1=-x+60y2=2x-360r(sh)ֹͣ(yng)(dng)y1=y2r(sh)ԓƷăr(ji)Q(chng)鷀(wn)r(ji)Q(chng)鷀(wn)
          1ԓƷķ(wn)r(ji)c(wn)
          2r(ji)ʲôԓƷڹ(yng)
          3(dng)ڹ(yng)r(sh)ͨ^(gu)(du)(yng)ṩr(ji)a(b)N(li)߹؛r(ji)߹(yng)F(xin)Ҫʹ(wn)4f(wn)(yng)(du)ÿƷṩԪa(b)Nʹ(yng)

          鿴𰸺ͽ>>

          ͬ(x)(c)