?? (?)?????????:??“?” ?????“???”?
????:1?????9598:??????
2????????????
3????????????
4?????????????
5??????vx
???“???+?????????+?”??????,???????????,?600???????????????????????????????“??+?+???”??,??220??,?????
????????????,???????????1992??,???????????“??”??????????,???20.3????????????????????????????,???????????????????,????????????????19.2?????(????????????????? ???? ?? ???)
????:????