【单选题】印度狼孩的故事说明
A.
狼孩始终都是一个人,因为它具有人的一些共同特征
B.
脱离了人类社会,不具有社会属性,一个人就不成为人
【单选题】下列 食品不是按照加工工艺分的是 __ __ 。
【单选题】下列食品不是按照加工工艺分的是__ __。
【单选题】What about the Jamaican teachers impressed the author most?
A.
Their miserable lives as minorities in countries other than their own.
B.
Their commitment to the education of their students in their homeland.
C.
Their frequent travelling between the U. S. and their own country.
D.
Their determination to and confidence in achieving the best education in the U. S..
【简答题】在关系模式R(D,E,G)中,存在函数依赖关系E→D,(D,G)→E,则候选码为______。
【单选题】在关系模式R(D,E,G)中,存在函数依赖关系{E→D,(D,G)→E},则候选码是( )