压缩比
参考答案:
压缩机的出口压力(绝压)与入口压力(绝压)之比,叫做该压缩机的压缩比。
男性,43岁,膀胱内的 * * 状瘤,就诊时医生告诉病人,应尽早手术,因为易发生
A.出血
B.结石
C.感染
D.尿潴留
E.恶变
If I ruled the world, I would________the world________everything that is bad. [ ]
A. get rid of; by
B. be rid of; by
C. rid; of
D. get rid; of