题目:
Geographic range is the maximum distance at which a light may be seen under().
A.existing visibility conditions,limited only by the curvature of the Earth
B.perfect visibility conditions,limited only by the curvature of the Earth
C.existing visibility conditions,limited only by the intensity of the light
D.perfect visibility conditions,limited only by interference from background lighting
答案:
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参考答案:相关分析和回归分析的联系是:它们通常都是基于两个正态连续变量的假设,都是处理两个变量间相互关系的统计方法,通常两种方法不同时出现在文章中;二者的区别是:作为相互关系分析的方法,相关分析是...