?? ?????????????? ??4???
????:1?????????:????
2???????????
3??????
4?????????
5??????vx
?????????12???????????11?? (??????????????? ????????)“‘????+???????????????????????????’???,?????”?????,????????,?????????????????????????11?????????????
??,??????????????????? ?????????10??????????????????????????????????,?????????,????????????????????????????????????????????????????????????4????
“10????????????????????????????????????????????????”?????,??100?????????????????????????,??????????,??????????
“???”?????,??,???????????,????,??????????????????????????,???????????????
“???????????,4700???????????”??????????????“???”,???,??????????????????????????????????,?????????????????????????????????????????????????
“?????????????????????????????????????????,?,???”?????????????????,??????????,???(?????????) ????:??