????:1?????????????:??92?

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

3?????????

4?????????

5?????vx

????????????2???20????? (???? ?????????????)?,???20?????????????????????,?????????????“?????”??????????????,???,????????“??”?????????????????

2?????20????,?“?”??????? ???

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

??????????????????????? ????

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

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

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

“??,???‘????????’?????????,????‘????+?????????????????+???????????????’????,????‘????????????’????????????????????‘????’?????,????????????‘??????’??????,?????‘????’????????‘?????’?”?????(?????????????????????????????)

?????:????