单词：principle of biologic continuity
单词：principle of biologic continuity 相关文章
the Daffodil principle Several times my daughter had telephoned to say, Mother, you must come to see the daffodils before they are over. I wanted to go, but it was a two-hour drive from Laguna to Lake Arrowhead I will come next Tuesday, I promised a
每天一点英文
Explanation: U.S. senators serve (or work in their public position) for six-year terms that are staggered, which means they dont all begin and end at the same time. One-third of the senators are elected every two years. With staggered terms, there ar
美国精神
By Lisa Schlein Geneva 20 August 2007 Experts attending an international conference are calling for quick action to reduce the threat posed by biological weapons. Participants attending the week-long meeting at the United Nations in Geneva say the so
2007年VOA标准英语（八月）
俄罗斯莫斯科的一位生物能量学教授近日宣布，他已研制出一种能够有效延缓衰老的不老药，并有望于几年内上架销售。这位科学家用40年的时间研制出一种抗氧化剂，能够有效抑制氧分子对人
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