On the basis of the structure of vegetable organs, the first leaf and root are the earliest organs in the development of embryo.
据营养器官的形态结构判断，在海金沙胚胎发育中最早出现的营养器官是叶和根。
On the basis of the structure of vegetable organs, the first leaf and root are the earliest organs in the development of embryo.
据营养器官的形态结构判断，在海金沙胚胎发育中最早出现的营养器官是叶和根。
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