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课例标签:When was it invented
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47:35
- 初中英语《When was it invented》【颜雪】(中学英语优质课教学展示)
- 2015-10-29
- 颜雪
- 2271 19
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24:51
- Unit9 SectionB when was it invented 3a 丹东市第五中学【宋春蕾】(辽宁省义务教育精品课例)
- 2014-09-20
- 宋春蕾
- 1575 7
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41:30
- 九年级英语 Unit 9 When was it invented Section B
- 2016-10-14
- 1491 13