单词：lobed spleenwort
单词：lobed spleenwort 相关文章
What do you know about giraffes? Well, you almost certainly know they are the tallest quadrupeds on earth, capable of growing up to 19 feet tall. You may know that this height allows these vegetarians to eat the very nutritious leaves of the acacia t
国家地理2007年
VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Steve Ember. VOICE TWO: And I'm Shirley Griffith. This week, we will tell about evidence that something big struck the planet Jupiter. We will also tell about a long ignored organ in
VOA慢速英语2009年（八）月
This is Scientific Americans Sixty-second Science. Im Cynthia Graber. This will just take a minute. Poor old spleen, it never got the recognition it deserved. Until now. Scientists had known that the spleen is part of our immune systems. But it was c
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206. The spinal cord operation脊髓手术 spectra-sponge There was a lecture given at a medical school on a spinal cord operation. The professor began: In order to have a speedy but safe operation, one must speculate on the entire spectrum of possib
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44 圣·约翰草并不能有效治疗情绪低落 DATE=5-3-01 TITLE=SCIENCE REPORT- Saint John's Wort and Depression BYLINE=Nancy Steinbach (Start at 59
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