He is thinking of           his business while his father is strongly against it for fear of the further positive effect of the global economic crisis. .

A．expanding

B．carrying

C．exploding

D．spreading

在边际贡献大于固定成本的情况下，下列措施中不利于降低企业复合风险的是( )。

A．提高权益乘数

B．提高产品单位售价

C．增加产品销售量

D．节约固定成本支出