单词：bisdimethylglyoxime cobaltochloride
单词：bisdimethylglyoxime cobaltochloride 相关文章
Long before the sled reached Solomon, Balto was in charge of the journey. 早在雪橇到达所罗门驿站之前，巴尔图就开始了他的旅程。 He alone knew in what direction to continue traveling. 只有它知道方向。 Regardless of dar
美国小学英语教材5
Far away in the United States there was a cure for diphtheria, called antitoxin serum. 在美国离这儿很远的地方有一种治疗白喉的药，叫做抗毒素血清。 The doctor sent out a frantic appeal for help. 医生拼命呼救。 A twen
美国小学英语教材5
Balto, the Best Lead-dog in Alaska 阿拉斯加最优秀的领头狗巴尔图 Frances Margaret Fox 作者：弗朗西丝玛格丽特福克斯 Perhaps you think that dogs are used only as pets. 或许你会认为狗只是宠物。 Do you know that for
美国小学英语教材5
Every winter some twenty million tons of salt are dumped on America's road.That sodium chloride melts the ice, so it prevents its formatin, helping to prevent accidents. But road salt has its downside. This is not very economical because salt is main
2016年Scientific American(一)月
This week on Why Tell Me Why, we are finding out why the oceans are so salty. So the oceans are salty because the oceans have been around, lets say, for over five hundred million years. And over the course of time what we found out is that weve alway
自然百科2009年
First off, I'll mention that at the bottom of the sea there exist veins of zinc, iron, silver, and gold whose mining would quite certainly be feasible. 首先，我对您说，海底有锌、铁、银、金等矿藏，开发并不是不可能的事。
《海底两万里》中英双语有声读物