???-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?,?????(???????????) ??????:??