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Horizon - Life On Mars 火星生命 - 2

I think it is exciting. Because it would imply that if life arose independently on Mars. The implication is that life is pervasive throughout the universe. This is why Mars has so obsessed scientists.

发表于:2018-12-07 / 阅读(54) / 评论(0)

火星生命

Horizon - Life On Mars 火星生命 - 5

William Boynton is professor of planetary sciences at the University of Arizona. And he's dedicated his life to looking for water on Mars. The link between life and water is very strong. Even here in

发表于:2018-12-07 / 阅读(76) / 评论(0)

火星生命

Horizon - Life On Mars 火星生命 - 12

But there was something even better. Odyssey may not just have found ice. There may also be liquid water, and that means, there could be living creatures there too. Right now, there might be liquid wa

发表于:2019-01-02 / 阅读(75) / 评论(0)

火星生命

Horizon - Life On Mars 火星生命 - 11

One of these wavelengths corresponds to hydrogen, another wavelength would be iron. Another wavelength would be oxygen. And so you go to the part of the spectrum you are interested in and you see you'

发表于:2019-01-02 / 阅读(53) / 评论(0)

火星生命

Parent-Teacher Associations

By Jerilyn Watson Broadcast: October 23, 2003 This is Steve Ember with the VOA Special English Education Report. Six-million people in the United States belong to 1)parent-teacher associations, or PTA

发表于:2019-01-02 / 阅读(49) / 评论(0)

VOA2003（下）-教育与新闻

纯正英语一分钟-parent

Being a parent is the biggest responsibility we can have in our lives. Its scary if you think about it. You have to look after a tiny baby for years and years. It is your duty to make sure that little baby grows up into a wonderful, happy and respons

发表于:2019-01-21 / 阅读(52) / 评论(0)

纯正英语一分钟

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