?????4.8??????277?? ???????

????:??????:2019????

???????????????6?13????? ????,??13??,??,?????????????????5??30???,?277????????,?100???

?,??????????????????,???239??????,?????????????????,??????,????

6?????12?8?????26?????49?,???4?????????4.8???35.7??????????????????,???????126.71????,???17???,??????0.6~3.1??????????????,???2????

?????:????