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