下列不属于积极的投资组合管理的是( )。
A.市场时机选择
B.证券分析
C.指数化
D.或有免疫
参考答案:C
解析: C项指数化是消极的投资组合管理策略。
I shall never forget the days I spent in Beijing University, has a great effect on my life.
A.that; which
B.which; that
C.when; that
D.when; which
樱桃谷鸭是(),乌鬃鹅是()鹅种。