这一组中包括黄酮类化合物, 二苯甲酮 、 一些香豆素 、 木质素 、 缩合单宁和芪.The group includes flavonoids, benzophenones, some coumarins, lignans, condensed tannins, and stilbenes.目的研究新生霉素的结构单元诺维糖和香豆素的抗肿瘤活性.Objective To study the antitumor activity of ot...
总而言之，这是一本通俗而务实的物理入门书。On balance, the book is a friendly, down-to-earth introduction to physics.他是物理尖子.He was the top student in physics.我对物理和化学不是太感喜爱。I wasn't too keen on physics and chemistry....