单词：distribution main
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Black holes got their name because light can't escape them, beyond a certain radiusthe event horizon. But in 1974 Stephen Hawking proposed that quantum effects at the event horizon might cause black holes to benot completely black. Hawking said that
2016年Scientific American(八)月
(MA) Now, you've been reading articles about the tremendous damage done to life and property by earthquakes. That's why seismologists have been working so hard to develop methods of earthquake prediction. We can now predict earthquake [assertively]
托福听力短文
Hoverbike Flying Closer to Reality Another long-standing dream of many technological inventors is quickly approaching reality. U.S.- and British-based firms are cooperating in the development of an individual flying platform they call a hoverbike. Th
VOA标准英语2015年(七月)
By David McAlary Washington 07 March 2006 NCAR scientists Mausumi Dikpati (left), Peter Gilman, and Giuliana de Toma examine results from a new computer model of solar dynamics Researchers predict tha
2006年VOA标准英语（三月）
20 top predictions for life 100 years from now Last week we asked readers for their predictions of life in 100 years time. Inspired by ten 100-year predictions made by American civil engineer John Elfreth Watkins in 1900, many of you wrote in with yo
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BEIJING, July 12 (Xinhua) -- The Asian Development Bank (ADB) on Thursday lowered its prediction for China's economic growth to 8.2 percent in 2012 and 8.5 percent in 2013, although a bank official said a hard landing is unlikely. The ADB made the re
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