“经济人”假设是古典经济学家和古典管理学家关于人性的假设，是西方经济学和（）科学管理的出发点。
A.麦格雷戈
B.泰勒
C.霍桑
D.马斯洛
参考答案：B
Frank is working late again. This is the first time this week he's had to study late,_____? [ ]
A. isn't he
B. hasn't it
C. hasn't he
D. isn't it
既想参赛锻炼自己，又怕成绩不好被人讥笑，此人的动机冲突是（）
A.双趋冲突
B.双避冲突
C.趋避冲突
D.双重趋避冲突
E.双重避趋冲突
