????:1???????????:?????????????

2??????????????

3??????v

4?????VX

5?????

??11??????????????22????? ?22??????????????????????????,???????????,?????????

????????????????????,?????,??????????????????????????????????????????????29???,??????????????????15????,??????????????

??????,???????????,????,??????????????,??????????????,?????818.6???????,????48.8%;????,??488.5????????????????????,????78.6%?

“?????????????,???????????????????,????????,????????????”?????? ???:????