黑素着色的

Naked skin or effectively naded skin has been the primary interface between the human body and the environment for over 200,000 years. Penn State anthropologist Nina Jablonski on the evolution of human skin pigmentation at the annual meeting of the A

发表于:2018-12-24 / 阅读(32) / 评论(0) 分类 Scientific American(二)月

This is scientific American's 60 seconds science. I'm Sophie Bushwick, got a minute. Tens of millions of years ago, cephalopods were hiding from enemies in clouds of ink. And it turns out thatcuttlefish today producing ink that's almost identical. Re

发表于:2018-12-24 / 阅读(39) / 评论(0) 分类 Scientific American(五)月

This is scientific Americans 60 second science, I am Sophie Bushwick. got a minute. Tens of millions of years ago, cephalopods were hiding from their enemies in clouds of ink. And it turns out that cuttlefish today produce ink thats almost identical.

发表于:2018-12-24 / 阅读(29) / 评论(0) 分类 Scientific American(五)月

(WA) Human populations near the equator have evolved dark skin over many generations because of exposure to the fierce rays of the Sun. A similar phenomenon has also occurred in other parts of the animal kingdom. The African grass mouse is a good ex

发表于:2018-12-30 / 阅读(44) / 评论(0) 分类 托福听力短文

色素性皮肤病 雀斑 freckle 色素痣 pigmented nevus 咖啡斑 café-au-lait spots 黄褐斑 chloasma 白癜风 vitiligo Riehl黑变病 Riehl's melanosis 口周黑子-肠息肉综合征 pigment

发表于:2019-01-03 / 阅读(50) / 评论(0) 分类 医务英语

Many women around the world use skin-lightening beauty products in an effort to improve their looks. The World Health Organization, or WHO, reports that the country with the highest percentage of women using such products is Nigeria. In its 2011 repo

发表于:2019-02-25 / 阅读(59) / 评论(0) 分类 2019年VOA慢速英语(二)月