凝结水泵的出口水压是在负压条件下，因而要求具有良好的密封性能和抗汽蚀性能。
参考答案：错
I can't find the book about famous sportsmen _____ I borrowed from the library yesterday. [ ]
A. which
B. who
C. what
D. whom
《会计法》规定，各单位都必须单独设置会计机构。( )
