??????????

????:????vx:?????

??????????????????

?????1????6???? (???? ??)?6?????????,?????,??????

????,??????????????????????????2050?????????,?????????????????????2019?????????,?????,?????40%?

??????,?????490???????????????????????????????,???7000???(1??2.4???????????????????)??

??????????????,??????????30%???,?????????????????????,?????????????????????????

???????,?,???????????????????????(?) ??????????:???????