单词：apparatus for Reid vapor pressure test of petroleum products
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Conditions on Mars were so harsh that it was hard to imagine any life surviving there. The idea of sophisticated aliens was wiped out. We know that conditions on Mars today are not very good for life.
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British scientists say they have found a way to diagnose tuberculosis in an hour. Alasdair Reid is an advisor on HIV and Tuberculosis (TB) at UNAIDS. He says diagnosing TB quickly will revolutionize the fight against the illness. It will save time fo
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In contrast, Jupiter and Saturn are all atmosphere. Unlike Earth, Jupiter doesnt really have a solid surface that you could stand on and then have your head up in the atmosphere looking at the clouds. Its just a giant, giant gas ball. Only one other
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18 Simple Tips to Avoid Back Pains Whether we are seated or standing up, the back has almost no rest. The postures we adopt to sit or while doing our daily activities are not very often adapted for our back. This constant 'torture' of our back result
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【英文原文】 If I were to stop drinking water right now, how long could I live? There are several different factors involved here. A human being isnt an automobile which needs a certain amount of gas. There are conditions under which a person c
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The Invisible Hand 无形的力量 A: What's going on? B: Check out the setup , Yaoyao. A: A stove, an empty aluminum soda can, kitchen tongs , and a saucepan . Are you experimenting with a new recipe ? B:No, i'm experimenting with air pressure. A:Ho
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