Equity concentration ratio CR5 which is the sum of shares of the leading five shareholders and corporate performance present an inverse-U shape .
农业样本上市公司前五大股东持股比例总和CR5所代表的股权集中度与公司绩效呈现倒U型特征；
It may modify only register fields cr0 , cr1 , cr5 , cr6 , and cr7 .
只能修改寄存器的以下域：cr0、cr1、cr5、cr6和cr7。
cr5