土石方体积应按挖掘前的( )计算。
A．天然密实度体积
B．虚方体积
C．夯实后体积
D．松填体积
参考答案：A
“库存商品”科目本期借方发生额，反映企业本期发出库存商品进价或售价。（）
_____ the people present, I _____ without a word. [ ]
A. If it were not; go
B. Were it not for; would go
C. weren't it for; would go
D. If it hadn't been; would have gone
