?????????????11??????17??????????19????????????,??,?????

?????????,??????????“????????”??????????????????(G20)???????????“?????”,???????“G20?”????,?????????????????????????????,?G20??,???

?????:???????? “??95?????”????

?? ??????????????:??G20??????

????:1???95?????:?????400

2?????sn????

3???????100

4???????

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

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?????????,??????????“????????”??????????????????(G20)???????????“?????”,???????“G20?”????,?????????????????????????????,?G20??,???

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