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        1. Ӣҽ̾W(wng) > > }ĿԔ

          }Ŀˮ衱Ľ•ӡˡĽ•^•{(dio)•푶ȴ

          𰸡ˮţ
          ⣺ˮ衱Ľ•ӡˡĽ•^ӵijɿ(dng)l^Խ•{(dio)
          ˮţ•(dng)^ˮţ•푶ȴ
          ʴ𰸞飺ˮţ
          W(xu)а˶ܸX(ju)•ď(qing)Q푶ȣ•ĸߵͷQ{(dio)

          (x)(c)ϵд
          P(gun)(x)}

          Ŀ (li)Դ

          }Ŀ׻nj׷F偃(ni)߅ӟ߅(dng)һΕr(sh)g顱һ•׃׻f(shu)_ǣ

          AҪͨ^(gu)(dng)F偌(du)ʹ(ni)

          BҪͨ^(gu)cFgğfʹ(ni)

          C(ni)ˮܟÛ(du)_ˮփ(ni)ܲ׃

          D(ni)ˮܟÛ_(du)(ni)

          鿴𰸺ͽ>>

          Ŀ (li)Դ

          }ĿиMB(ti)׃^(gu)УУ
          A.ۻ̡A
          B.ۻA
          C.ҺA
          D.ۻҺ

          鿴𰸺ͽ>>

          Ŀ (li)Դ

          }ĿijͬW(xu)÷ֵֶ1mmĿ̶ȳߜy(c)һ(g)wL(zhng)ȣȺ_ķy(c)Ĵy(c)õĔ(sh)ֵքeǣ13.46cm13.44cm13.44cm13.90cmy(c)õĽY(ji)(yng)ʾ飨

          A13.447 cm B13.45 cm C13.56 cm D13.44 cm

          鿴𰸺ͽ>>

          Ŀ (li)Դ

          }Ŀһ늿ƵĜy(c)Һ߶ȵăxͨ^(gu)Һϵķ⾀򵽹܌̖(ho)ģK̖(ho)M(jn)̎ρ(li)@ʾҺ߶ȣDʾ(dng)ϵĹc(din)S1ƵS2r(sh)ʾҺ߶ ˣ½򡰲׃һlм^ֱʾĂ;@Nо(wn)}ĿƌW(xu)

          鿴𰸺ͽ>>

          Ŀ (li)Դ

          }ĿD1ʾABɿ̶ȳߜy(c)ͬһľK߅L(zhng)_ʹõĿ̶ȳߵx(sh) cmһ(g)Ů400my(c)ĕr(sh)gD2ʾÕr(sh)g

          鿴𰸺ͽ>>

          Ŀ (li)Դ

          }ĿλQ㣺0.5km= m10m/s= km/h

          鿴𰸺ͽ>>

          Ŀ (li)Դ

          }Ŀ•ͨ^(gu)˶Ħ܇b•@

          鿴𰸺ͽ>>

          Ŀ (li)Դ

          }ĿD̽ƽRc(din)(sh)(yn)

          1(sh)(yn)E

          aˮƽһ׼QһK

          bһ֧ȫͬě](mi)c(din)ȼϞTڲĺƄ(dng)ijһλÕr(sh)l(f)F(xin)ԓϞTcc(din)ȼϞTغڼӛԓϞTλA1

          c׃ǰϞTλ؏(f)ό(sh)(yn)ڼӛcλA2A2A3A3䣨Dʾ

          dc(din)ȼϞTڲǰڲڼӛϞTλA1

          Ո(qng)?zh)ϲEaЙM̎ă(ni)ݣ

          ڌ(sh)(yn)Eĺ Eǰĸ

          2Dքe(sh)(yn)еc(din)cc(din)Bӣl(f)F(xin)BʼKc

          3A1λ÷һ ܡ򡰲ܡнӵ@f(shu)

          鿴𰸺ͽ>>

          ͬ(x)(c)