Crossing a forest, he saw a lion motioning him to stop.穿过一片森林的时候, 他看到一只狮子向他示意,让他停下来.The next man hurriedly motioning with his hand, said: " no, no. "旁边那人连忙一边摆手, 一边说: “ 不, 不. ”The president nodded soberly, motioning the a...
Vivaldi composed a large number of very fine concertos.维瓦尔第创作了很多非常优美的协奏曲。Larry: I'd like to get a Vivaldi CD, The Four Seasons.赖瑞: 我想要维瓦第的《四季》.Some famous classical composers were Bach, Vivaldi, Haydn and Mozart.一些著...
用各种稀的无机酸来萃取阴离子.A variety of dilute mineral acids are used to extract the anions.它对氟离子的选择性比其它普通阴离子高几千倍.It'shows a thousandfold selectivity for fluoride over other common anions.通常, 钙素过量是与该元素相联系的阴离子伴随产生的.In general, e...