【Native Speaker每日综合训练—31系列】【31-19】经管- China's Reform and Opening Up

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掌管 8        00:07:59.43        00:44:15.62
掌管 7        00:10:29.54        00:36:16.19
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掌管 4        00:03:41.57        00:18:00.96
掌管 3        00:04:57.82        00:14:19.38
掌管 2        00:03:58.55        00:09:21.56
掌管 1        00:05:23.00        00:05:23.00