单词:rotten disease of young sea cucumber
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VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Barbara Klein. VOICE TWO: Scientists are bringing the Dead Sea Scrolls to the Internet And I'm Steve Ember. This week, we will tell about an effort to place two thousand year old doc
Medicine from the Sea By Kevin Krajick / Originally appeared in Smithsonian , May 2004. Reprinted by permission. From slime to sponges, scientists are plumbing the ocean’s depths in search of new me
By Tom Rivers London 04 August 2007 Foot-and-mouth disease has appeared again in Britain, six years after it sparked the widespread slaughter of about seven million cows throughout the country in an effort to contain the outbreak. For VOA, Tom Rivers
[00:00.00]Unit 26 [00:03.85]Reading [00:05.18]What makes you laugh? [00:07.72]a The secret of staying young is to [00:10.37]live honestly,eat slowly,and lie about your age [00:16.49]b Television is an invention that permits [00:19.48]you to be entert
BOB DOUGHTY: This is SCIENCE IN THE NEWS, in VOA Special English. Im Bob Doughty. BARBARA KLEIN: And Im Barbara Klein. This week, we talk about a sickness called lupus and other autoimmune diseases. Autoimmune diseases affect the immune system, the b
今天我们要给大家介绍两个以