单词：cesium oxalate
单词：cesium oxalate 相关文章
[00:06.37]The United States has a new official clock. [00:10.95]The clock began operating late last year in the American city of Boulder,Colorado. [00:18.39]Experts say the new clock is so exact that it will neither gain nor lose so much as one secon
美国英语听力80篇
Jambalaya 演唱者：小野丽莎 英文歌词 goodbye joe,he gotta go,me oh my oh he gotta go pole the pirogue down the bayou his yvonne,the sweetest one,me oh my oh son of a gun,we'll have big fun on the bayou thibada eaux,fountain eaux the place
英语金曲精听
Youve given some thought to oxygen, carbon, uranium. But youve probably never mused about the element ytterbium, symbol Yb. A new study by scientists at the National Institute of Standards and Technology, or NIST, says that ytterbium could find a rol
Scientific American(八)月
An ass and an ox，fastened to the same yoke，were draging a waggon．While the ox was pulling with all his might he he broke a horn．The ass swore that he had got no help whatever from his weak companion．Exerting himself in the labour，the ox b
趣味英语
经典歌曲-什锦菜Jambalaya 卡朋特 good-bye joe, he gotta go, me oh my oh he gotta go-pole the pirogue down the bayou his yvonne the sweetest one, me oh my oh son of a gun, we'll have big fun on the bayou thibodaux, fontaineaux the place is bu
经典英文歌曲