单词:bone metastasis
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This is Scientific Americans' 60-Second Science. Im Steve Mirsky. Got a minute? The search for alternative fuels to gasoline has led to surprising possibilities, for instance, the waste oil for making French fries. But one of the most unusual alterna
This week well discuss choices about how best to use the words option and alternative. Frequently the words option and alternative are used interchangeably, but there is a difference. Do you know what it is? Lets say Horatio has a primary plan of act
Carol: Mom, Dad, it's a very generous offer, but, I don't I don't need to look over the dorms of Boston College to...to convince me. I've already made my decision, and I know where I want to go next year...Columbia University, in near by and conveni
India, Turkey and Israel are exploring a plan to use a new route to pipe and ship oil and gas to India. As Anjana Pasricha reports from New Delhi, the proposed pipeline will give energy-hungry India easier access to the vast oil and gas supplies of
By Jerilyn Watson Broadcast: July 17, 2003 This is Bill White with the VOA Special English Education Report. Some young people in the United States attend 1)alternative schools. These are schools that
Italys Interior Ministry warns of a new refugee route to Europe from Egypt. Numbers crossing the Mediterranean have slowed in recent weeks. 4 weeks ago, Omar Ali left for Europe on a boat just like this one. 13 days at sea with 250 on-board, he tell