????????4???佇?????? ????????4??佇?????? ????????4?????????
????????4?????????????????????——?????
???佇??????——?????
???VS????
??·???????+7%??13??
??·???????+7%??13??
???????
??????????X4 3% ???????X1 4% =16%
?????????????X2 3% ???????X3 4% =18%
??Σ????????????+3
6????????6%X3 =18%
??????????+4
???=???81 ??????83
????????4?????e????? ??????7??19?????>> >> >> >> >>
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