???19??????????????????

????:sn???????:?????

??9????27??????? (??????)???????????????,??,??,???????19.4????????????,???????????????2.77?????????,????0.7%,?????????2019????19.4%?

??,??,?????????80%,?????15.26???????????????20%??????????????????

???????10?????????????1?????????????????????,?????10???5??,???????????????9?????????30?????????????,??????????????????,????,??

????????????????????????????3????????????????????????????????????,?????,??

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