单词：theory of comminution
单词：theory of comminution 相关文章
RACHEL MARTIN, HOST: We try not to obsess about this too much, but we really do get to work very early around here. We don't get a whole lot of sunlight, especially in the winter months. So when you look around the newsroom, you see these special lam
2017年NPR美国国家公共电台11月
[00:06.37]Some people cannot see all colors correctly. [00:10.92]They cannot see all the colors in a rainbow or a sunset. [00:16.40]They cannot tell if the meat they are cooking is done or if a fruit is ready to be eaten. [00:23.61]Poor color sight a
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Light All Night Not Alright In a study presented at the annual meeting of the Society for Neuroscience, researchers found that mice that were exposed to light all night long showed signs of depression. Karen Hopkin reports A nightlight may keep those
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By Paul Sisco Washington 13 December 2007 It has long been known that when days become shorter many individuals experience a form of depression called Season Affective Disorder, or SAD. In this Searching for Solutions report, Paul Sisco reports on on
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LULU GARCIA-NAVARRO, HOST: Musician Gregg Allman, founding member of The Allman Brothers Band, has died at age 69. He passed away at his home in Savannah, Ga., after battling liver cancer and other health problems. He had a major role in defining the
2017年NPR美国国家公共电台5月
冬季员工的工作积极性会下降? Yesterday was the most unproductive day of the year, according to a survey, as workers' morale is hit by the darker evenings brought on by the clock change. Researchers found productivity will drop by 50 per c
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