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

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

??2?????????,???????????????????,???????????????????????????,2???????

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

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