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

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????????????,????14~15????,???,???????????????????????????????????????????????,18~20???????,??????,???

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

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

???????,??,??????????15~16????

??????,?????????15?????????????,???????????15°C,??????????5~8?,???????

??,??17?????????????????16?,?????????????????,???????7~8???????????

??,15????????????,????,??????16?????,??,????15???????????,???????????????????????????????20????????????

???????,????4??????????????10°C??,16??17°C;???15??????????26????????????,??????10?????,????????????

????15???????,????????,??????????

??????????????????,????:???

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