氰合血红蛋白

英语听力文摘 English Digest 669 高原反应是什么引起的？

What Causes Altitude Sickness? Anyone who has vacationed in the higher elevations of Colorado, such as Vail and Estes Park, will tell you altitude sickness can be a real problem. Loss of appetite, nausea, vomiting, weakness, dizziness, and difficulty

发表于:2018-12-05 / 阅读(40) / 评论(0)

英语听力文摘 English Digest

英文书摘精选高原反应是什么引起的?

Anyone who has vacationed in the higher elevations of Colorado, such as Vail and Estes Park, will tell you altitude sickness can be a real problem. Loss of appetite, nausea, vomiting, weakness, dizziness, and difficulty sleeping can plague those visi

发表于:2018-12-18 / 阅读(30) / 评论(0)

2018年NPR美国国家公共电台2月

SSS 2010-05-04

This is Scientific American's Sixty-Second Science. I'm Christopher Intagliata. Got the minute? A couple million years ago, mammoths migrated north from Africa to colonize Eurasia. Sometime around then a massive ice age kicked inand it was stay warm

发表于:2019-01-08 / 阅读(52) / 评论(0)

Scientific American(五)月

SSS 2011-09-20

This is Scientific American's 60-Second Science. I'm Sophie Bushwick. Got a minute? When it came to surviving freezing weather, mammoths relied on more than their woolly coats: even their blood was specially adapted to let them thrive in chilly clime

发表于:2019-01-08 / 阅读(54) / 评论(0)

Scientific American(九)月

英语听力：探索发现科学新发现：我们的大气层-11

The planet also began releasing oxygen, thanks to an ancient adoption of photosynthesis. A very ancestral primitive plant cell either engulfed or tried to digest or surrounded a cyanobaterium and instead of digesting it, it actually became an organ w

发表于:2019-01-23 / 阅读(50) / 评论(0)

探索与发现2014年

英语听力文摘 English Digest 465、强力胶的“天敌”

Superglue 强力胶 Male: Help！Help! Female:What's wrong？ M: I was fixing my coffee cup with superglue .And I must have got some on my fingers but I scratch my forhead.And now my hand is stuck to my head. F: Superglue ? Cool! What makes supergl

发表于:2019-01-26 / 阅读(47) / 评论(0)

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African histoplasmosis

Callicarpa longibracteata