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        1. 2013•LhģMcӽăɂ(sh)ǣ
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          C23
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          Ay=3
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          C
          D

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          ĿД(sh)W Դ2010꼪ʡзУп(sh)WģMԇܷ񣩣棩 x}

          2013•LhģMDμƬABCDEFۯBʹcC߅ABϵcH̎cDcG̎AHG=40°tGEFĶȔ(sh)飨

          A100°
          B110°
          C120°
          D135°

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          ĿД(sh)W Դ2010FʡFĶп(sh)WģMԇ棩 x}

          2013•LhģMһ͸IJb50S׃ɷNɫ򣬳ɫͬСtͨ^ԇl(f)F(xin)Slʷ(wn)0.3tаУ
          A15
          B20
          C30
          D35

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          ĿД(sh)W Դ2009ӱʡеп(sh)Wģԇ棩 }

          2013•LhģMD֪ھABCDУAD=8CD=4cEcDl(f)ؾDAÿ1λLٶcAƄͬrcFcCl(f)侀CDÿ2λLٶƄBEF(xin)crcͬrֹͣ\ӣOcEƄӵĕrgt룩
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          2O߅BCFEeSSct֮gĺ(sh)Pϵʽtȡֵ
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