下图Ⅰ中放一盆正常生长的大豆Ⅱ处为一u型管Ⅲ处放一只健康的小白鼠 Ⅴ使装置中的空气以一定速度按箭头方�流动根据装置图分析回答问题 Template




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tomski下图Ⅰ中放一盆正常生长的大豆Ⅱ处为一u型管Ⅲ处放一只健康的小白鼠 Ⅴ使装置中的空气以一定速度按箭头方�流动根据装置图分析回答问题 coloring