A. 物理性质和化学性质 B. 元素组成和矿物组成 C. 构造和结构 D. 孔隙性和密度
A. 肺动脉狭窄 B. 室间隔缺损 C. 主动脉关闭不全 D. 房间隔缺损 E. 右心房肥厚
A. drained into the vessels bilges B. reclaimed for other uses C. held in a slop tank D. purified and then reused