泵工作中实际能达到的最大吸高随()降低而降低。
A.吸入滤器阻力
B.液体温度
C.泵的流量
D.吸入液面压力
参考答案:D
用over或again构成的短语填空(每空限填一词)
1. He did the job so badly, so I had to do it( all)_____ ___ _.
2. Before leaving, he was told to be careful_____ ___ _ _____ ___ _.
3. Though told _____ ___ _ not to tell lies, the boy still does as he likes.
护理理论的四个基本概念的核心是()。
A.人
B.环境
C.健康
D.疾病
E.护理