石灰岩地质的英文翻译是（ ）
A、the nationwide fitness campaign
B、a limestone composition
C、average life expectancy
D、sport facilities
【正确答案】：B
【题目解析】：石灰岩地质的英文翻译是 a limestone composition全民健身运动 the nationwide fitness campaign
平均预期寿命 average life expectancy
体育设施 sport facilities
