定序测量不仅能区分事物,而且能反映社会现象在高低,大小,先后,强弱等顺序上的差异,它的数学特性比定类测量高一个层次。()
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西方史学界第一部历史著作《历史》的作者是()。
A. 赫克泰阿斯
B. 希罗多德
C. 色诺芬
D. 荷马
柜台业务包括()、储存和商品销售等活动
A. 生产
B. 运输
C. 包装
D. 进货
英译中
Declaring that he was opposed to using this unusual animal husbandry technique to clone humans, he ordered that federal funds not be used for such an experiment -- although no one had proposed to do so -- and asked an independent panel of experts chaired by Princeton President Harold Shapiro to report back to the White House in 90 days with recommendations for a national policy on human cloning.