任何一种态度都有其对应的特定对象，这是指( )。
A．态度的社会性B．态度的针对性C．态度的协调性D．态度的两极性
参考答案：B
Usually people in Japan and Korea _____ when they meet for the first time. [ ]
A. are supposed to kiss
B. are supposed to bow
C. suppose to kiss
D. suppose to bow
将如下E-R图转换成关系模型，应转换成多少个关系模式
A．1个
B．2个
C．3个
D．4个
