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[00:00.00] Unit 5 Shall we go to the zoo? [00:15.80]Shall we go to the zoo? [00:44.75]A:Hello, may I speak to David? [00:49.40]B:Speaking! [00:52.43]A:Hi, David! This is Lin Tao speaking. [00:57.08]A:Hi, Lin Tao. What's up? [01:00.84]B:What are you g
(人教版）初中二年级上册
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
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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.
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
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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
自然百科2010年
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
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