我东北的朋友经常嘲笑我废物，看来以后有话可回了。 http://www.nytimes.com/2010/07/20/science/20adapt.html?ref=science
Ten thousand years ago, people in southern China began to cultivate rice and
quickly made an all-too-tempting discovery — the cereal could be fermented
into alcoholic liquors. Carousing and drunkenness must have started to pose
a serious threat to survival because a variant gene that protects against
alcohol became almost universal among southern Chinese and spread throughout
the rest of China in the wake
