在证券组合分析中，理性投资者具有在期望收益率既定的条件下选择风险最小的证券和在风险既定的条件下选择期望收益率最高的证券这两个共同特征。()
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技术分析流派认为，股票价格波动是由市场供求平衡所决定的。()
A. 正确
B. 错误
假定某公司在未来无限时支付的每股股利为8元，必要收益率为10%，此时该股票的市场价格是70元，则该股票被低估10元，可以购买该种股票。()
A. 正确
B. 错误
From the way the headmaster spoke, we can learn that ______.
A. he was ordering the older boys to do the work at once
B. he actually expected everyone to join in the work
C. he did not care who did the work provided it was done quickly and properly
D. he wanted the older boys to take the responsibility rather than work themselves
Which of the following has not been mentioned in the passage？
A. How Barbara and Marie advertised their products.
B. How Barbara and Made raised the capital needed for the manufacture of their products.
C. How customers responded to the products.
D. How Barbara and Marie felt about their business.
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