1. [单选题]轿车汽油机的压缩比一般在( )范围内。
A. 8~11
B. 17~22
C. 4~7
D. 12~17
2. [单选题]计算实体性贬值(substantial devaluation)时,采用寿命比率法(使用年限法)的公式是( )
A. 实体性贬值(substantial devaluation)=(重置成本+报废价值)×
B. 实体性贬值(substantial devaluation)=(重置成本+报废价值)×
C. 实体性贬值(substantial devaluation)=(重置成本—报废价值)×
D. 实体性贬值(substantial devaluation)=(重置成本—报废价值)×