【单选题】下列 食品不是按照加工工艺分的是 __ __ 。
【单选题】五笔字型的字节根分配在( )个英文字母键上。
【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..
【单选题】What do the Zhuang people usually do on Lunar March 3rd every year?
A.
They usually hold a grand singing ceremony in antiphonal style--- “Fair of Songs Festival”.
B.
They usually match singing.
C.
They usually sing folk songs
D.
All of them are right.
【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______。