企业实行价格歧视的基本原则是,不同市场上的( )。
A.相对收益相等
B.边际收益相等
C.固定收益相等
D.平均成本相等
参考答案:D
(2013·江苏,22)The president of the World Bank says he has a passion for China,________he remembers starting as early as his childhood.
A.where
B.which
C.what
D.when
患者男,39岁。发热而欲近衣,形寒怯冷,四肢不温,少气懒言,头晕嗜卧,腰膝酸软,纳少便溏,面色白,舌质淡胖,边有齿痕,苔白润,脉沉细无力。此时的证候诊断是()
A.气虚发热证
B.血虚发热证
C.阴虚发热证
D.阳虚发热证
E.气郁发热证