????:1??????????:??92?95?98?

2?????VX

3??????????

4??????????

5?????????

9?????27???,???,??????????????,?????????????????,???????????????19.4????,????????????????2.77??;???0.7%,???????2019???19.4%?

??,??????????80%,????15.26??????????????20%???????????????????????,???(??????????? ? ???)

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