Science

1st

grade

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四年级 科学 , 动物的呼吸器官

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30 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt
    Image

    鲸鱼的呼吸器官是

    潮湿的皮肤

    气孔

  • 2. Multiple Choice
    30 seconds
    1 pt
    Image

    蚱蜢的呼吸器官是

    潮湿的皮肤

    气孔

  • 3. Multiple Choice
    30 seconds
    1 pt
    Image

    蝌蚪的呼吸器官是

    潮湿的皮肤

    气孔

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