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by Jason Marshall A few months ago we talked about how to multiply fractions. Now that were comfortable doing this and weve talked about a few applications of multiplying fractions such as how to convert units and how to estimate how fast someone is
Dr Molnar s interest was piqued at a conference in 2013, Molnar博士的兴趣源于2013年的一次会议, when Karen Kinemuchi, another astronomer, presented some puzzling findings on a particular star seen by Kepler, a space telescope designed c
THIS IS AMERICA - Debate Over Electronic Voting By Jill Moss Broadcast: Monday, July 05, 2004 (MUSIC) VOICE ONE: Welcome to THIS IS AMERICA, in VOA Special English. I'm Gwen Outen. VOICE TWO: And I'm
Four months after the historic first-ever detection of gravitational waves, scientists said they have directly detected another gravitational wave washing over the Earth. 在引力波历史性的首次检测到四个月之后,科学家们近日表示
With consumers rushing to buy the latest gadgets, the problem of what to do with discarded electronic products is becoming a growing environmental concern. Although electronic recycling is not yet as popular as paper and plastic recycling, two Americ
By the next showing Ive had refined the playful model. 在下一次展示之前,艾弗又完善了这个模型。 This time Jobs, with his binary view of the world, raved that he loved it. 这一次,乔布斯带着他那不是杰作就是狗屎的评