They're all famous _____.[ ]
A. swim
B. swimmer
C. swimers
D. swimmers
答案:D
下列检查中,对确定缺水的类型帮助最小的是
A.尿比重
B.尿钠
C.血肌酐
D.血钠
E.血气分析
纪检监察机关的职责是什么?