??????????7?????????????31???????? (??? ????????)?????7?31?????????

?:7?30??????,?“2+2”???????????????????,???????????????,???????????,???????????

????????:???????????????,???????????????,??,????????????????????????????????????,?????????????????????????????,??,?????,????????????????(??????????)

???:???? ??“????????vx”

?? ???????????????????? ????

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

2??????????

3???????

4??????

5???????

??????????7?????????????31???????? (??? ????????)?????7?31?????????

?:7?30??????,?“2+2”???????????????????,???????????????,???????????,???????????

????????:???????????????,???????????????,??,????????????????????????????????????,?????????????????????????????,??,?????,????????????????(??????????)

???:????