12?????22????????,??????

???????,????,????????

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

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

(? ?? ?????????????) ???????????????:?? ??“?????????”????

?? ?????:“????”“????”??????????

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

2??????????

3??????????

4????????

5????????vx

12?????22????????,??????

???????,????,????????

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

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

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