????????4???佇?????? ????????4??佇???? ????????4?????????
????????4?????????????????????——????
???佇??????——????
???VS????
?????????+11
?????+22??7??
???????+8
??????+4
???????
??????????X4 2 ???????X1 3 =11
?????????????X2 2 ???????X3 3 =13
??Σ?4399e???+4
6????????13X3 =39
?????????????嶾?????+14
???=???120 ??????122
????????4?????e????? ??????7??19?????>> >> >> >> >>
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