单词：nitrous acid mutant
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研究报告：人类少吃肉对环境有好处 A new study says one of the best ways to curb greenhouse gas emissions is to eat less meat. In fact, the study says meat consumption in the developed should be cut by 50 percent per person by 2050. 一份
VOA双语新闻 2012年4月
This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? Generations of American children have been told, Eat your broccoli! And for decades, researchers have known that broccoli and related vegetables like cauliflower and water
Scientific American(一)月
1. What is the man's initial reason for visiting the dentist? A. He wanted to have a filling replaced. B. He needed to have a tooth pulled. C. He came in for a dental check up. 2. What problem does the dentist discover when he takes a look in the pat
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Addressing Climate Change through Diet A new study says one of the best ways to curb greenhouse gas emissions is to eat less meat. In fact, the study says meat consumption in the developed should be cut by 50 percent per person by 2050. Meat producti
VOA标准英语2012年(四月)
Have you ever wanted to stay young a little longer 大家有没有想过要年轻再久一点 and put off aging? 延缓衰老呢？ This is a dream of the ages. 这是很久以来的梦想了 But scientists have for a long time 不过科学家以前一
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