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This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Conditions such as mad cow disease are caused by abnormally shaped proteins, called prions. Prions spread by causing other, normal proteins to misfold

发表于:2018-12-24 / 阅读(65) / 评论(0)

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Occlusal wear - loss of enamel on the biting surface of the teeth due to the abrasive action of chewing natural unprocessed food. Odontoblast process - the extension of the cy lasm of an odontoblast w

发表于:2019-01-03 / 阅读(109) / 评论(0)

医务英语

SSS 2009-03-02

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Its like the molecular version of the Joker and the Riddler teaming up against Batman. Scientists at Yale University have discovered that amyloid beta, a

发表于:2019-01-08 / 阅读(110) / 评论(0)

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RACHEL MARTIN, HOST: Scientists have developed a better test for a very rare brain disease. And as NPR's Rae Ellen Bichell reports, this test could lead to new ways to diagnose more common diseases like Parkinson's and Alzheimer's. RAE ELLEN BICHELL,

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Part five 第五章 Endodontic Treatment 根管治疗法 There's a patient with severe pain in the waiting room, Doctor. 医生，在候诊室有一个病人牙痛得很厉害。 Take an X-ray and ask him to sit down in treatment room number two. 给她

发表于:2019-02-27 / 阅读(166) / 评论(0)

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atomic,biological and chemical warfare

barely enough moisture to produce crops

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