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【单选题】
下列关于茨的投资组合理论的说法，不正确的是（ ）。A.
该理论假定市场上的投资者都是风险偏好的 -
B.
该理论认为，对市场上每个投资者，都存在一个可以用均值和方差表示其投资效用的均方效用函数
C.
均值～方差模型是目前投资理论和投资实践的主流方法
D.
该理论认为，最佳投资组合应当是具有风险厌恶特征的投资者的无差异曲线和资产的有效边界线的交点
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【单选题】what belongs to white pollution?(详见background 部分)
A.
paper
B.
iron
C.
plastic bags
D.
polluted water
【单选题】Maotai belongs to which alcohol type?
A.
White spirit
B.
Yellow rice wine
C.
Beer
D.
Grape wine
【单选题】The cat with a white tail isn’t _______. I think it belongs to _______.
A.
mine; him
B.
mine; his
C.
my; him
D.
my; his
【单选题】what belongs to "white pollution"?
A.
waste paper
B.
dirty water
C.
plastic bags
D.
any garbage
【单选题】A child may get confused hearing the color of white used for paper because he originally thought it as the word only for snow . This phenomenon belongs to ________.
A.
analogy
B.
over-extension
C.
under-extension
D.
overgeneralization
相关题目：
【单选题】Maotai belongs to which alcohol type?
A.
White spirit
B.
Yellow rice wine
C.
Beer
D.
Grape wine
【单选题】what belongs to "white pollution"?
A.
waste paper
B.
dirty water
C.
plastic bags
D.
any garbage