A.will decrease as the rate of return increases.
B.will decrease as the standard deviation increases.
C.will decrease as the variance increases.
D.will increase as the variance increases.
E.will increase as the rate of return increases.
第3题
B.Form utility
C.Place utility
D.Time utility
第8题
A.total utility
B.marginal utility
C.costly utility
D.an util
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