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

2?????

3???????????

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

5???????????

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

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

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

?????:?? ?????????????????“???????”

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

???,????????????????????????????“??????????????”???????????????5A?????????“???????????????????”??,?????????????,?????????,????

????,??????4.2????????????????????????????????,??????????????,??????????????????????

????????,???????????5??????????,???3??,???????? ?????:???????????