?? (???????????)?????? ??????
????:1???????:????????
2??????vx
3???????
4????????
5????????600????
?????????6????????14? ???:???????? ?
?????????? ????????????? ????????????
???????,??????????????????????????,???????????????……??????,???“????????”????????????????????
“??????‘?????????????????’,?,?????????????,???????????????,?????????,???”??????,“???????”????,????????????????,????????,???,???????
????,???????????????????????????????????,???????????,???????????????,???
????,???????????????2????(??,????),??????250.28??????,?????????????????????????????????????,??????5500??????????????????????,???????16????????
“?????????????????????,???????????????????????”??,???????????????,????,???,??????????“???”???“????????????”????????????“?????????????”?????????????????
“????????????????,??1500???????????????????????????”?????????,?,?,??????????
???????????,??“??”?????????????,???????????,??????????????,??????????????,???????
“??2??,?????????????50????,?????20????????,?????????????????????????,????????80?????,??2.4?????????????”??
“???????????????,??????????‘???+????????+?????’???????????,???‘??’?”????,??,???????5???????????,????????????“????”1200??,???1200????????2???(?) ??:???????????????