about this computer program, a huge amount of time and energy　　　　.

A．Should I know; be saved

B．If I had known; can be saved

C．Had I known; would have been saved

D．Did I know; was saved

资产负债率表示企业总资产中有多少是通过负债得来的，是评价企业负债水平的综合指标。过低的资产负债率表明( )。

A．企业财务风险太大

B．企业财务风险太小

C．企业对财务杠杆利用不够

D．有利于用较小资金控制数额较大的资金