?? ????????????:???42.9??? ????4.32?
????:1??????????:?????????
2?????150??
3???????
4?????v
5?????????
??????9??30?? ????30????????“???????”??,??,??????????,?????????42.9???????????4.32????,??16.8%?17.1%,????????????????2019???????????,??????,??,????????????????????????????,??????????????
??:??????