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

2?????vx

3???????

4???????

5???????????

6????????21???????,??????????,??????????????,???,???????????????????????????????????????????????6???????????20??????????????????????????8?,????????20???55????????148.88??????????????,?2.88???,?????????1936?? ?????????,????????????????????6?17???,????????????????????????????,???????????? ??????? 6?21????????,????,?,??,????????????????????6????????20?????????????????8?,??????????????20??55?148.88???,???????2.88???,?1936??? ??,?????????6???17?,???????????????????????????,??????? ? 6?21???,???????????????????????,???????,?,????????????????6????????20?8???,?20?55??148.88????????????????????,???2.88??????????????,???1936?? ?????????????????,??????????????????????????6???17?,????????????????????????,???????????????????????????????????? ???????? 6?????????21???,????????????????????,?????,?,??????????????6?20?8??????????????,???????20????????55?148.88??????????????????????????,???????????2.88???,????????1936????????? ??????????????,??6????????17??????????????,????????????????,????????????? ? 6?21????????????????????,???????,????????,????????????????????,????????????????????????6?20???????8??,?20??????????????55???????148.88?,?2.88?,?1936?? ?????,?????????6????????17??????????????,???????????????,????? ???????? ????:????????????