2??10??,?????????,??“??”?????????“??”???????,????????,??????????????????,??????????,??,???????“????????”??????????,????????“??”??????????????????????(????????????? ????????? ?)

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

??“??????”????

?? ??????“??”?????

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

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

3???????

4?????vx

5?????????

2??10??,?????????,??“??”?????????“??”???????,????????,??????????????????,??????????,??,???????“????????”??????????,????????“??”??????????????????????(????????????? ????????? ?)

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