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问题 选择题

I am very thirsty. Could you please give me _____ water?[ ]

A. some

B. little

C. many

D. other

答案

答案：A

选择题

— Is that your brother?

— Yes, ____________ is. [ ]

A. he

B. his

C. she
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单项选择题

An analyst does research about the coefficient of covariance and the Sharpe ratio. A security's mean return is positive and more than its standard deviation of returns. If the risk-free rate is zero, the coefficient of covariance is most likely:

A. less than the Sharpe ratio.
B. equal to the Sharpe ratio.
C. greater than the Sharpe ratio.
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