????:1???????????:?????vx

2??????????

3???????

4????????????

5????????????

???(13???)??,??,??,????????????????????????????????????2????

??,??????2.02??????????????????,???????????????36.6%,????????,????????????????6216?????????????????????,????????12965???,???????946?????????

???????????,???????????56.5%,??,????

???????,????,?????????????50%;?????????????????,“??”??,???????47%?(??) ???????:???