????:1???????300????:???????

2??????

3???????

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

5?????600???

???

“???????????????????????????????????????,??????????,???”

???G20?????????????????,?????????????????“??”??????,???????????????????????????????????????????,?????

“?????????????????”??????,???????:???,??????,??......???????????“???”“?”?????????,????????????????????????????,???,??,??

???????????????????:???????????????????????????????

????????????:???

??:????????

???:???

???????:?????????

???????????????:???