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课例标签：Topic 3 China is the third nation that sent a person into space
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40:22
- 编部科普版初中英语九年级上册《Unit 4 Amazing Science.Topic 3 China is the third nation that sent a person into space》（初中英语优秀参赛获奖课例教学实录）
- 2020-02-14
- 1400 0
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40:17
- 编部科普版初中英语九年级上册《Unit 4 Amazing Science.Topic 3 China is the third nation that sent a person into space.Sec（初中英语优秀参赛获奖课例教学实录）
- 2020-02-14
- 1280 0
