???-17.8? ???2????????35????

???2???8??(??????????? ???????)??????????????,????8??,??????-17.8??????-4.6?,????,?35???????2????

8?????????,?????89?,????????????????57?,??,??????????????????5???,????????1?,“?”??????????

????“???????”,??,?,?????????????,???????,?,?????????????????,?????????????????,???????????0?????????,??2????,???68??

?,?8?????-4.6???2???-4.6?????????,??1990???????????2??????????1?(-6.2?)?

???,???????8????????????????,??,????????9?????????-3?????-5?,????,??????????-6???????????????????????-8?,??????10???????,?????-1?????-3?,??????,??-4?????????????????????-7?,??(???) ???:??