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A.Because there was a shortage of men and women in the area.B.Because mining communiti..
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How often is physical science more accurate than .....
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Wben the error is small, the statistical principles used in dealing with it are ______ whe..
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环境伦理观的主要内容是什么?..
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混凝土强度检测回弹仪率定试验所用的钢砧应每2年送授权计量鉴.....
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According to the writer, the exactness of a scien.....
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