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

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

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??,????,??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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