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        1. Ӣҽ̾W(wng) > > }ĿԔ

          }ĿС|Rr(sh)ڵ·҂(c)I܇(ni)l(f)F(xin)ÿ(dng)I܇߅܇^(gu)r(sh)I܇(hu)΄(dng)һ@׌Ո(qng)w(qing)cP(gun)ϵԭ@һF(xin)

          𰸡ʾ

          ԇ}(dng)I܇߅܇^(gu)r(sh)܇֮gĚͨ׃խ׃(qing)׃ССڃ܇(c)ĉ(qing)(hu)γ(ni)ĉI܇(hu)΄(dng)һ

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

          Ŀ (li)Դ

          }ĿĿǰww܉ǽ܉һڵϷ300kmҵ܉w@wһܵĕr(sh)gs90minwڳϿwôwĺT24h(ni)Ҋ(jin)ճĴΔ(sh)ܞ

          A. 16 B. 1 C. 2.7 D. 0.38

          鿴𰸺ͽ>>

          Ŀ (li)Դ

          }Ŀ(x)ǘ(gu)Ļλֱһڣ

          A. 1091010m B. 103107m C. 1015m D. 105106m

          鿴𰸺ͽ>>

          Ŀ (li)Դ

          }ĿС|ٕr(sh)͸ĸȥΣڳ˳܇r(sh)õһ?zh)п\(yn)ИI(y)ðl(f)ƱDʾ

          1˳܇r(sh)gmin
          2ԓ܇@Εr(sh)g(ni)\(yn)(dng)ƽٶȞkm/h

          鿴𰸺ͽ>>

          Ŀ (li)Դ

          }ĿһƴM(jn)͏(qing)(zhng)J(rn)顰Fw߀Fᔡ(qing)J(rn)顰FwͲFᔡ(yng)ԓ 

          A. (qun)f(shu)nj(du)

          B. ώR(bo)f(shu)ڽW

          C. X(ju)ܟo(w)ȥ(hu)

          D. ֹͣ?fn)ȡһKFһЩƷ(sh)(yn)ͨ^(gu)(sh)(yn)(li)f(shu)

          鿴𰸺ͽ>>

          Ŀ (li)Դ

          }Ŀ•(du)҂(li)f(shu)Ϥ^(gu)P(gun)•f(shu)_ǣ

          A. •w(dng)a(chn) B. Ǟڂ;Мp•

          C. (j){(dio)ĸߵͱeͬĘ(l) D. •܂fϢ܂ͨ

          鿴𰸺ͽ>>

          Ŀ (li)Դ

          }ĿP(gun)•F(xin)f(shu)e(cu)`ǣ

          A. •15Ŀ՚Ђٶȼs340m/s

          B. ҵ(dng)l(f)•

          C. ۾l(f)F(xin)wеϵKͰl(f)F(xin)x(chng)

          D. ĺij•͹•˂(j)ɫM(jn)зֱ

          鿴𰸺ͽ>>

          Ŀ (li)Դ

          }Ŀɳl(f)ȥ^ɳl(f)ϕr(sh)ɳl(f)l(f) ˵ ĶpСɳl(f)(du)˵

          鿴𰸺ͽ>>

          Ŀ (li)Դ

          }Ŀa(chn)ߞ˹(ji)sԭϺÑʹ÷Ҫ(j)ȼٶa(chn)Ҏ(gu)ĸN㣬һNDʾՈ(qng)O(sh)Ӌ(j)һ(g)(sh)(yn)y(c)ԓȼٶҪ

          1(xi)Ҫ
          2f(shu)y(c)

          鿴𰸺ͽ>>

          ͬ(x)(c)