[医] 近中髓的

Medicine from the Sea

Medicine from the Sea By Kevin Krajick / Originally appeared in Smithsonian , May 2004. Reprinted by permission. From slime to sponges, scientists are plumbing the ocean’s depths in search of new me

发表于:2018-12-19 / 阅读(56) / 评论(0)

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【英语时差8,16】玉米是如何演化的？

Don: Mmm. I'm making corn on the cob for dinner, and my mouth is already watering thinking about those sweet juicy kernels! Yal: Yum! Hey Don, how did corn evolve? The seeds are all crammed together on the cob and wrapped tightly inside the thick hus

发表于:2018-12-27 / 阅读(79) / 评论(0)

英语时差8，16

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英文短文：Cohesion-tension Theory

Cohesion-tension Theory Atmospheric pressure can support a column of water up to 10 meters high. But plants can move water much higher; the sequoia tree can pump water to its very top more than 100 meters above the ground. Until the end of the ninete

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英语小短文

EXPLORATIONS - Wade Davis: Scientist, Explorer and Writer

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发表于:2019-01-11 / 阅读(70) / 评论(0)

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BBC Learning English People and Places Hany El Hamzawy William:Hello and welcome to People and Places the programme where you meet interesting people with interesting stories! My names William Kremer. Today, I thought wed practise some listening com

发表于:2019-02-04 / 阅读(132) / 评论(0)

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age-specific life table

Alesten

angle fittings

anodic depolarization wave

apheliotropic

at a crisis

autoplastically