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

2??????????

3???????vx

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

5???????wx

?????????????1???19??? (????????????? ???????)“?????????????,??????,???????????”??????,????????????????????????????????????????????,???????????,???????????

19????,????,???????????????????????????1?14?????????,???????????????????????????????????,???????????????,??????

1????????????18?,?????? ?????

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

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

????????,????????????????????????????,??????????????????,“?,????????,??????????”?(??)

???????????????????????:???????????