????:1???????????:??????

2????????????

3?????????

4????????????

5?????????

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

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

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

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

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

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