角鲨胺是从1995年开始在实验室合成的，因此，不再从鲨鱼组织中直接提取。
Squalamine has been synthesised in a lab since 1995 and is no longer extracted directly from shark tissue.
最后，它创建一个视图，这个视图提取并以关系列的形式提供职员ID、名字、姓氏和办公室编号。
Finally, it creates a view that extracts and exposes employee IDs, first names, last names, and office Numbers as relational columns.
实验室研究也显示，豆瓣菜叶子的提取物抑制了乳腺癌细胞的生长。
Laboratory studies also showed that extracts taken from watercress leaves inhibited the growth of breast cancer cells.
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