1 . Biological systems have been doing this for __________ (billion) of years. (所给词的适当形式填空)
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2 . ________________ (三分之二的学生) have taken part in the physical activity. 根据汉语提示完成句子
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2023-08-23更新
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50次组卷
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2卷引用:人教版2019必修一 unit 4 Video Time 课前预习
3 . Indeed, his slim but strong body is just like that of millions of Chinese farmers, to whom he has devoted his life.
确实, 他瘦削但结实的身躯, 与其为之奉献毕生的_____________ 无异。
确实, 他瘦削但结实的身躯, 与其为之奉献毕生的
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