单词：mercaptobenzothiazole
单词：mercaptobenzothiazole 相关文章
PEOPLE IN AMERICA -February 17, 2002: Bessie Coleman By Vivian Bournazian VOICE 1: I'm Shirley Griffith VOICE 2: And I'm Ray Freeman with the VOA Special English program, People in America. Today we t
People in America
PEOPLE IN AMERICA - November 3, 2002: Jacob Riis By Herbert Sutcliffe VOICE 1: I'm Shirley Griffith. VOICE 2: And I'm Ray Freeman with the VOA Special English program, People in America. Every week at
People in America
Maria is 18. She will go to college in September. She will be a college student in September. But right now it is summer time. It is June. Maria needs a job. She needs money for college. She needs money to buy books for college. She wants a job. Mari
超级简单英语阅读
You know,it's pure luck. Ever heard of a bullet-proof BlackBerry? The smartphone is usually used to make a phone call,check e-mail or do some social networking. But this BlackBerry Curve, literally stopped the bullet. I checked,there's no ad for that
万花筒2010年
In many ways Enzo is just like any other house cat: he likes attention, loves sleeping and can't wait to get his claws into the furniture. 从很多方面看来，恩佐跟普通的家猫没啥两样：它喜欢别人的关注，嗜睡如命，而且总
英语万花筒
Car accidents are the number one killer of teenagers in the United States. Government data show that every year over 4,000 teens lose their lives in collisions that are caused mostly by distracted drivng - a term that includes everything from having
VOA标准英语2010年(六)月