?1????26???? (??????????????????? ????????????)1?26?????????????????,????2??,?????????2????????

?????????????????,2?,???0.1~0.5?,??????????????????????????????:?????????????????21.0~23.4?,?????????19.0~21.9?,???????????

??,?(1?????????28????????????????????~2???????4?),??,?,?2?????3????????~4?,????????????????????????????????????????????1???????????????????30???~2?1???????????????????,??????????????1????????31?????????????????~2????????1???,??????2????1??????

?,??,?????????,??????????,??????,?,???,??????????????????????????????????????????????????????????,?????????????,?????????(?????) ??????:?????

??

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