????:1?????vx???:???????

2?????????

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

4?????

5??????????

?????11??????22??????????????????? ????:????????????:?? ????“??????????”

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

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

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

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

“?,???????????????????,????70?????80??????????????????”?????

??? ??? ?????

?????????????????,“???,????????1.5????,???????????50????????????????,30???????,???????,???”

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

????,???????????,???????????????,????????,????,???400?????,???????????????????????????????????????,???40?????

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

“??????????,???????????,????????40??????????1??,?????,????????????”??????,??????????,????????????,???,??????(???)

???:???