单词：chemical registry system
单词：chemical registry system 相关文章
今天讨论的主题是美国国家电影的那些事... Neil: Hello and welcome to 6 Minute English from BBC Learning English. I'm Neil and with me today is Jennifer. Jennifer: Hi Neil. Neil: Now we're talking about films today. Are you a film buff
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VOICE ONE: Welcome to THIS IS AMERICA in VOA Special English. I'm Steve Ember. VOICE TWO: And I'm Shirley Griffith. This week -- some recorded sounds for all time. (MUSIC) VOICE ONE: The Library of Congress in Washington, D.C., recently added twent
VOA慢速英语2007年（四）月
VOICE ONE: Welcome to THIS IS AMERICA in VOA Special English. I'm Shirley Griffith. VOICE TWO: And I'm Steve Ember. This week on our program, we tell about a list of American movies that recently received special recognition. For the past fifteen ye
VOA慢速英语2008年（一）月
US National Recording Registry Adds New Music Selections Each year, the United States Library of Congress selects 25 songs at least 10-years-old that are culturally, historically, or aesthetically significant to add to the National Recording Registry
VOA标准英语2011年(四月)
By Doug Levine Washington 17 April 2006 A 1917 recording of Nora Bayes singing Over There, a 1938 radio broadcast of The Adventures of Robin Hood, Dave Brubeck's 1959 million-selling jazz album Time O
2006年VOA标准英语（四月）
The IMPACT registry stands for 'Improving Pediatric and Adult Congenital Treatment' and includes information about patients who do not undergo open heart surgery. Often they undergo catheterization, a procedure which uses a catheter, or narrow tube,
VOA标准英语2010年(一月)