下列说法中正确的是 [ ]
A.0是最小的数
B.最大的负有理数是﹣1
C.任何有理数的绝对值都是正数
D.如果两个数互为相反数,那么它们的绝对值相等
答案:D
What is the expected rate of return on a stock that has a beta of 1.4 if the market risk premium is 9 percent and the risk-free rate is 4 percent()
A. 16.6%
B. 11.0%
C. 13.0%
单位质量(1Kg)流体所具有的动能为0.5v2,单位为()。
A.m
B.N/m2
C.N·m
D.N/m