????:1???????SN????:?????150???

2????????

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

4??????????

5??????????

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

2??????????????2??,?? ? ?????????? ?????????

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

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

2??2??,?????????“?????????????”?,?????? ? ?? ?????????????????????

??????“??????”????????????,?????,??????????“?????‘?????’??????,??????????????????????‘?’,????????????????????,??????,???????????????????,??”

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

2?2??,??????????????? ???????? ?? ??

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

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

??:????