题目内容

根据组合投资理论，在市场均衡状态下，单个证券或组合的收益E（r）和风险系数β之间呈线性关系，反映这种线性关系的在E（r）为纵坐标、β为横坐标的平而坐标系中的直线被称为（）。

A. 压力线
B. 证券市场线
C. 支持线
D. 资本市场线

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Her six brothers as well as her father, ______to control her as if she had "seven fathers".

A. are trying
B. has tried
C. is trying
D. tries

Its uncertain______.

A. why did he do it
B. why does he do it
C. when did he do it
D. whether he did it or not

【C17】

A. worked on
B. came out
C. paid off
D. rose up

自有效市场假说结论提出以后，学术界对其有效性进行了大量的实证检验。从检验结果来看，迄今为止的基本结论是支持（）假设。

A. 弱式有效市场
B. 半强式有效市场
C. 强式有效市场
D. 都不支持