单词：highstand tract
单词：highstand tract 相关文章
Most people searching for buried treasure would be looking for silver and gold, ancient coins or rare artwork. But scientists studying the extinct giant moa (已灭绝的一种新西兰无翼大鸟) bird and its environment are looking for a differen
大千世界
Your nose may be the first place you think of as a source of mucus. But mucus is a major player in your gut, too. There's antimicrobial peptides and proteins that are present in there. Bacteria live in there and forage on the carbohydrates. And it's
2016年Scientific American(十一)月
Some Fatty Foods Trigger Natural High Ever wonder why foods that are bad for you - such as fat-laced potato chips and French fries - taste so good? It turns out they follow the same pleasure-inducing biochemical pathways through the body as marijuana
VOA标准英语2011年(七月)
Colleges Dangle Perks to Attract Students Many American high-school students worry about getting into college. And their parents worry about paying the tuition bills. And - except for crme de la crme schools that can pick and choose whom to admit - m
VOA标准英语2011年(五月)
JOHANNESBURG, March 23 (Xinhua) -- Cervical cancer ranks as the second most frequent(频繁的) cancer among women in South Africa. Recent information from a World Health Organization (WHO) and ICO Information Center on Human Papilloma virus (HPV) an
英语新闻
Soaring Price of Used Grease Attracts Thieves The high price of food and fuel has made a valuable commodity out of an unexpected resource: the price of used vegetable oil from restaurant fryers is so high that people are stealing it. Just ask grease
VOA标准英语2011年(十月)