单词:black-stemmed spleenwort
单词:black-stemmed spleenwort 相关文章
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
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
Jamey Turner often performs to large crowds in Old Town Alexandria, Virginia, a short drive from Washington, D.C. 弗吉尼亚州亚历山大旧城区距离华盛顿特区仅仅一小功夫的车程,杰米特纳经常在这座小城的街头为围观
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
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
Unit 47 Buying Flowers 第47课 买花 F: Welcome to Flower Power, sir. What can I get for you? 花商:先生,欢迎光临动力花店。您要些什么吗? C: I'd like a dozen long-stemmed roses. 顾客:我想要一打长梗玫瑰。 F: Woul