题目内容
预调查后进行数据分析时，陡坡指数大于1的要予与以删除，因为分散程度过于集中。（）
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Which thematic progression pattern has been used in this paragraph? The inventor of the diode valve was Fleming. He made use of the fact, first noticed by Edison, that an electric current could be made to flow across the empty space between the hot filament of an electric lamp and another metal electrode placed inside the evacuated bulb. This effect depends upon the thermionic emission of electrons from the heated metal filament.(W. P. Jolly, (1972). Electronics, p. 61)
经表皮失水是测量皮肤表面的水分含量。
1.EXCEL中,函数计较选定单元格区域内数据的总和（ ）
3.Excel,计算参数中所有数值的平均值的函数为( )。
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