黑素着色的

美国科学60秒 SSS 2013-02-21

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(55) / 评论(0)

Scientific American(二)月

SSS 2012-05-28

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(54) / 评论(0)

Scientific American(五)月

SSS 2012-05-25

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(47) / 评论(0)

Scientific American(五)月

托福听力短文 II-01-2

(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(66) / 评论(0)

托福听力短文

专业术语—皮肤科词汇中英对照(16)

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(74) / 评论(0)

医务英语

英语听力：自然百科为何婴儿大多拥有蓝色眼睛？

Hi, its Kasey-Dee Gardner for Why? Tell Me Why? This week we received a question about baby eye color. The question was why are most babies born with blue eyes?. And I wasnt sure that was a true statement, but it is in fact a true statement. Actually

发表于:2019-01-09 / 阅读(62) / 评论(0)

自然百科2009年

英语听力：自然百科罕见的全黑帝企鹅

This all black feathered king penguin could be one in a zillion. The video was recorded on a sub-Antarctic island of South Georgia by National Geographic Traveler magazine contributing editor Andrew Evans on his bus to Antarctic expedition. While man

发表于:2019-01-22 / 阅读(58) / 评论(0)

自然百科2010年

英语听力文摘 English Digest 151、当头发变白

Your teenage son wrecks the car. Your daughter shows up with her recently paroled boyfriend. These are the sorts of things that can make your hair turn gray overnight. Actually, it's impossible for hair to completely change color overnight. Hair colo

发表于:2019-02-16 / 阅读(68) / 评论(0)

英语听力文摘 English Digest

VOA慢速英语--Nigerian Women Fight Skin-Lightning Movement

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(90) / 评论(0)

2019年VOA慢速英语(二)月

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A S Hornby

accredited party

across the tracks

alienation of product of labor

alpinia pricei sessiliflora

automatic digital encoding system (ades)

barrier to entry