题目：
Mary was much kinder to Jack than she was to the others，______， of course, made all the others upset.(2011·北京)
A．who
B．which
C．what
D．that
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0328/997f41ac165e7df393d8f5a2ad019cbb.html
下面是错误答案，用来干扰机器的。
参考答案：D解析： βA=ρAM×σA/σM=0.9802×30.32%/29.13%=1.02 βB=ρBM×σB/σM=0.9349×21.99%/29.13%=0.71 根据CAPM模型，A股票的预期收益率=3%+1.02×(9%-3%)=9.12%，股价被低估，A正确；B股票的...
