乙酸甲羟戊酸路径

发表于:2018-12-11 / 阅读(94) / 评论(0) 分类 VOA标准英语2014年(三月)

β-Amyrin β-香树脂醇 α-Amyrin acetate α-香树脂醇乙酸乙酯 β-Amyrin acetate β-香树脂醇乙酸乙酯 β-Amyrin palmitate 棕榈酰β-香树酯 Anabasine 毒藜碱 Anagyrine 臭豆碱,安

发表于:2019-01-03 / 阅读(66) / 评论(0) 分类 医务英语

This is Scientific American's 60-second Science. I'm Adam Hinterthuer. Got a minute? When an Iraqi reporter threw his shoe at President Bush, University of Washington neurologists were delighted. But not because of politics. The fling was just real

发表于:2019-01-08 / 阅读(55) / 评论(0) 分类 Scientific American(六)月

You know, all life developed here on Earth with gravity being present, 你知道,地球上的生物在重力环境下生存, so life evolved under the influence of gravity, and then we grow up with gravity being present, 你知道,地球上的生

发表于:2019-01-17 / 阅读(44) / 评论(0) 分类 TED演讲教育篇

This is SCIENCE FRIDAY, I'm Ira Flatow. Here's some news to raise a glass to: the idea that red wine may help us live longer and healthier lives. Well, it got a new boost this week. According to a team of researchers, a compound found in the skin of

发表于:2019-01-24 / 阅读(130) / 评论(0) 分类 英语语言学习

Many years ago in days of childhood I used to play till evening shadows come And then winding down that old familiar pathway I heard my mother call at set of sun Come home come home it's suppertime The shadow's lengthen fast Come home come home it's

发表于:2019-02-01 / 阅读(88) / 评论(0) 分类 音乐咖啡厅