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        1. cףһͯ(ji)ij׃@eû[ɡ~(y)ِDʾ

          Dٱʾ1l~(y)Dڱʾ2l~(y)D۱ʾ3l~(y)Ҏ(gu)ɣ[n(g)~(y)Ҫĸ(sh)飨
          ^o3(g)Dע(sh)׃LjDڵĻȈDٵĶ6D۵ĻȈDڵĶ6DٵĻĸ(sh)2n+6
          ⣺ɈDο֪
          һ(g)~(y)ûĸ(sh)飺2+6=8
          ڶ(g)~(y)ûĸ(sh)飺2+26=14
          (g)~(y)ûĸ(sh)飺2+36=20
          
          n(g)~(y)ûĸ(sh)飺2+n6=2+6n
          xA
          c(din)u(png)}д(sh)ʽ}ĽwF(xin)⵽һĔ(sh)W(xu)w{^ҵ(sh)׃Ҏ(gu)ȻnlС~(y)ҪĻĸ(sh)
          (x)(c)ϵд
          P(gun)(x)}

          ĿД(sh)W(xu) (li)Դ

          8c•һͯ(ji)׃@Ҫòʼ׈Aֱ1mߞ2mһAĂ(c)森ÿƽײʼ10Ԫt@A(c)IJʼ
          62.8
          ԪӿpԲӋ(j)С3.14

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) (li)Դ x}

          cףһͯ(ji)ij׃@eû[ɡ~(y)ِDʾ

          Dٱʾ1l~(y)Dڱʾ2l~(y)D۱ʾ3l~(y)Ҏ(gu)[n(g)~(y)Ҫĸ(sh)


          1. A.
            2+6n
          2. B.
            8+6n
          3. C.
            4+4n
          4. D.
            8n

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) (li)ԴԔ x}

          cףһͯ(ji)ij׃@eû[ɡ~(y)ِDʾ

          Ӣҽ̾W(wng)

          Dٱʾ1l~(y)Dڱʾ2l~(y)D۱ʾ3l~(y)Ҏ(gu)[n(g)~(y)Ҫĸ(sh)飨
          A2+6nB8+6nC4+4nD8n

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) (li)Դ

          c·һͯ(ji)ij׃@eû[     

          ~(y)ِDʾҎ(gu)[()Dûĸ(sh) 

          鿴𰸺ͽ>>

          ͬ(x)(c)