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    1. ęn>GRE(sh)W}Y(ji)

      GRE(sh)W}Y(ji)

      rg2024-07-25 17:50:47

      GRE(sh)W}Y(ji)

      GRE(sh)W}Y(ji)

      GRE(sh)W}Y(ji)

      GRE(sh)W}Y(ji)

      1.AB¼ABͬrl(f)ęCʞ0.3AΪl(f)ęCʞ0.5l(f)BęCc0.5ȴС keyAl(f)ĸʞ0.5+0.3=0.8;=0.3=PP=0.8P P=0.3750.5

      ⣺AΪl(f)ęCʞ0.5ABͬrl(f)rAl(f)ĸʑԓǣAΪl(f)ABͬrl(f)֮ͼP=0.5+0.3=0.8

      PP=PP=P/P=0.3/0.8=0.375

      2.AF(xin)ĸ0.6  B F(xin) 0.8, A or b or both.F(xin)ĸc 0.92^С

      ⣺~P=1-0.6=0.4 ~P=1-0.8=0.2 ~ab=0.20.4=0.08 1-0.08=0.92

      C.

      3.320һŮĸ0.65@ȺŮжĔ(sh)100ȴС

      ⣺ֻһˣԴ}ĸ䌍ǰٷֱȣ

      Ů˔(sh)320=96 100xB

      4. 1100 xɂͬĔ(sh)߽Ԟ 6 ı(sh)ęC?

      ⣺100ﹲ6ı(sh)Ă(sh)100/6=164t16

      GRE(sh)W}Y(ji)P(gun)£

      (sh)WӋY(ji)03-19

      Д(sh)WcY(ji)03-20

      (sh)W̌WY(ji)ʽ03-20

      Zij~02-01

      Y(ji)õĔ(sh)Wʽʽ04-22

      СW(sh)W޵ķ˼cY(ji)02-26

      P(gun)K“(lin)(sh)WČWɿY(ji)10-17

      һ(sh)W(jng)򞿂Y(ji)03-19

      СW(sh)W̌WunĿY(ji)09-25

      xɢ(sh)Wn̿Y(ji)03-13

      Ñf(xi)h