We _____ there until next Wednesday. What about you?     [ ]

A. are staying    

B. aren't staying  

C. are leaving    

D. didn't leave

侧重于揭示企业财务结构的稳健程度和分析企业债务偿付安全性的物质保障程度的指标分别为（）。

A．产权比率和资产负债率

B．产权比率和偿债备付率

C．利息备付率和资产负债率

D．偿债备付率和利息备付率