焦炉整个燃烧系统均应处于负压状态,其压力最好点应是()。
参考答案:看火孔
— What's wrong with him?
— He cold.[ ]
A. have a
B. has
C. has a
肝硬化最常见的并发症是()
A.肝肾综合征
B.上消化道出血
C.原发性肝癌
D.感染
E.肝性脑病