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快速短效类洋地黄制剂是
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Questions 17—20 are based on the following conversation. Why are scientists now studying variations in body temperature
为了使伤员气道通畅，可将枕头等物垫在伤员头下。
低压带电作业应穿绝缘鞋和全棉长袖工作服，并戴手套、安全帽和护目镜，站在干燥的地面上进行。
Study the following argument A and B, and tell about your opinions on this argument. A. I think money is everything. With money I can buy what I want. B. You are wrong. In my opinion, the more money you have, the more misery it would bring to you. You should use specific details to support your point of view and write no less than 250 words.
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