????:1???????:???????

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

3???????

4???????????????

5?????VX

??????????????11????29??????? (???? ???????)11?????29??,70??,??????????????,???“??”????“?”????,??

????????,?????????????????????????????,????“???????????”???????,???????????3.89????“????????”???1.98??????????????????90???“??????”???,??4.3???,?????

?????????????????????????,????,??????(??????????)??????????????,?“????????”??,?????????“?”????,???????????????????????????,???5????,????????????????

??,???????????“????”??????????????????????????????????,????25????38????,???????????“??????”?????????,??????,????,????“????????????(????????)???”???????,??????(?????)??“????”?

?,??????????????????????“????????????”“???+N”?,????????????????????????20???,???“??”,?“????”?????“???????????????????”,?????????“???”???“????”?????????????????????????????????,“??”?????“???”??,?????????????????(??????????) ????:??????????