在“绿叶在光下制造有机物”的实验中,将一盆天竺�放置�暗中一昼夜,选取其中一个叶片,用三角形的�纸片将叶片的上下两面遮盖起来如图一所示 Template




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tomski在“绿叶在光下制造有机物”的实验中,将一盆天竺�放置�暗中一昼夜,选取其中一个叶片,用三角形的�纸片将叶片的上下两面遮盖起来如图一所示 coloring