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

????:?????100???:???????

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

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

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

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

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

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