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          Ĕ(sh)W(xu)֪R(sh)c(din)ƽ߅

          r(sh)g2021-01-27 15:21:38 Д(sh)W(xu) ҪͶ

          Ĕ(sh)W(xu)֪R(sh)c(din)ƽ߅

          (do)Zpֻ֪W(xu)(x)I֮r(sh)̡С,(sh)W(xu)֪R(sh)c(din)ϣ(du),gӭxHP(gun)֪R(sh)Ո(qng)P(gun)עCNFLAW(xu)(x)W(wng)!

          Ĕ(sh)W(xu)֪R(sh)c(din)ƽ߅

          1|(zh)1 εėl߅

          2|(zh)2 ε`(du)Ǿഹֱÿһl(du)ǾƽһM(du)

          3e=(du)Ǿ˷eһS=(a×b)÷2

          4ж1 ߅ȵ߅

          5ж2 (du)Ǿഹֱƽ߅

          |(zh)1 εĂ(g)Ƕֱ

          |(zh)2 εČ(du)Ǿ

          ж1 (g)ֱǵ߅Ǿ

          ж2 (du)Ǿȵƽ߅Ǿ

          1 ͬһϵăɂ(g)

          2εăɗl(du)Ǿ

          3ж ͬһϵăɂ(g)ȵ ǵ

          4(du)Ǿȵǵ

          |(zh)

          1 εĂ(g)Ƕֱėl߅

          2εăɗl(du)Ǿȣһഹֱƽÿl(du)ǾƽһM(du)

          Ĕ(sh)W(xu)֪R(sh)c(din)ƽ߅ΡP(gun)£

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