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

2???????

3?????????????

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

5?????????????

?????

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

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

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

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

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