2020(ni)ɹż־ԸҎ(gu)
֮һĿx־ԸֻxͬһͬһͬһԺУČI(y)鱾rεĈ־Ը
1.gĿ_hgȡͿƷ֔(sh)rԼhgI(y)־Ը;Ŀ_hȡͿƷ֔(sh)rԼhI(y)־Ը;ˇgĿ_hˇgȡͿƷ֔(sh)rԼhˇgI(y)־Ը;wĿ_hwȡͿƷ֔(sh)rԼhwI(y)־Ը
2.ˇg()w()ĿԼĿƻͨĿ־Ը;ˇg()w()ĿԼƻͨ־Ը
3.hˇg()hw()ĿԼͨĿ־Ը;hˇg()hw()ĿԼͨ־Ը
4.gȡˇgI(y)ԇϸɿɼԺУˇgI(y);gɻ;ˇgɼgI(y)
5.ĿƵĿԼͨĿ־Ը
6.ƵĿԼͨ־Ը