【单选题】Consumer behavior Q3
A.
They spent a week studying their own purchasing behavior.
B.
They researched the impact of mobile phones on young people.
C.
They analysed their family budgets over the years.
D.
They conducted a thorough research on advertising.
【简答题】a consumer of vast quantities of vegetables, she does the thinning and hand-cultuvating of the tiny plants.
【单选题】Consumer Behavior Q1
【判断题】标准等于法律,而且标准与法律有着密切的内在的联系。( )
【简答题】标准等于法律,而且标准与法律有着密切的内在的联系
【简答题】从E-R模型关系向关系模型转换时,一个M:N联系转换为关系模式时,该关系模式的关键字是() A.M端实体的关键字 B.N端实体的关键字 C.M端实体关键字与N端实体关键字组合 D.重新选取其他属性