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

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

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

??“?????”

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

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

2?????vx

3??????????

4?????

5?????????

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

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

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