The mean return of a portfolio is 20% and its standard deviation is 4%. The returns are normally distributed. Which of the following statements about this distribution are least accurate The probability of receiving a return:（）

A. of less than 12% is 0.025.

B. between 12% and 28% is 0.95.

C. in excess of 16% is 0.16.

古埃及法系是（）

A、古埃及法系是人类最早的法系之一。大约在公元前4000年左右

B、古埃及法系是死法系，到现在已经没有研究的价值

C、古埃及法系被认为是活法系

D、古埃及法系是人类最早的法系之一。大约消亡于公元前4000年左右