目的: 本文研究鹅去氧胆酸 ( CDCA ) 对呼吸系统的影响.Objective: In this paper, antitussive , antiasthmatic and expectorant action of chenodeoxycholine acid ( CDCA ) were studied.目的研究猪去氧胆酸中的杂质成分和纯化方法.OBJECTIVE To investigate the impurities of...
It seemed politic to say nothing.沉默似乎是上策。I felt it politic to keep my peace and play the part of the attentive listener.我觉得保持沉默、做一名专心的听众比较明智。'I do it because it's politic; I do it on principle.“ 我那样做是出于策略, 出于原则...