????????? ???????????????

????:????:??????????

?12???????????21????????????? ??21??,????,?????????????,?????????????????????6~8??????,??????????????9~11??;??????????????,??????????????6~10?,?????????12??????,????(-21.6?)??(-27.1?)??????????(-19.7?)?????????(-17.6?)????(-20.2?)??????????????,??

??????

??,?????????,????????????????????????4~8????,?????????????????????????????2~4??

????????,????,???????,???????????????????????????????????????????7~8??????????????9~10??,????9???????????????????????10~11??

??????

????,????????????,????;?????????????????????????????;????,?,????,?????????

????,?????????,??????,?????????,??????????,??????,?????,?????

????:?????