马钱科是被子植物门（Angiospermae）双子叶植物纲（Dicotyledoneae）龙胆目（Gentianales）的一科，有13属，分布于全世界的热带地区。早期的分类方法在马钱科内包含有29属，某些分类系统（Takhtajan System）将其细分为四个科：Strychnaceae、Antoniaceae、Spigeliaceae、Loganiaceae。
目的：综述马钱科胡蔓藤属钩吻植物化学成分及药理作用的研究进展。
Objective: To review the research advances in the chemical constitution and pharmacological activities of the Gelsemium elegans.
当马科·波洛斯先生和一个非正式的小团队开始深入调查的时候，发现数以亿计的资金都流入了麦道夫的手里，而这些钱却没有在市场中交易过的痕迹。
As Mr Markopolos and a small, informal team began to dig, it became clear that billions of dollars were being channelled to Mr Madoff, yet there was no trace of his transactions in the market.
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