1??28???????????,???????,?,???????,1???????????????????????28??????0??????18????,????????20.9%?26.7%?????????,????????????????????????20??????,???????
????,?????,????????????????????,??????????????????,???,?????????????????,????????????
????????,?????????????,???????????????????,???????,??????????????????,???????????????????????????,??????????????????????????????,????,???????????????????????????????(??) ??????????????????????:???????????
????30?:???????A??????????…
??SEC?????????PE??????
????????ST??“??”?????????
??1?????????5.5%
??????K1?????????????
??????????:?????????
???:???????????????
??????????????:????????
??:?????????????
????????????
?????????????????5???
????:2016???????10?7.5????…
?????????:73??????????
??????????1-0???????43?
?????????????????4???
???????2018???????????
?????????????7???13???
???:??????????????
???:??????????????????
?????????:????????????
????????ST??“??”?????????
??????????????:10?5?????\"…
??:???????????????
2?24?22?????????
???:?????????????????