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Owing to the open ---door policy,great changes have taken place since 1918.

分类: 作业答案 • 2022-01-21 17:52:04

问题描述：

Owing to the open ---door policy,great changes have taken place since 1918.

答

从1918年起,由于开放政策的实行,发生了巨大的变化.