适宜用于化学法测定蛋白质的尿液pH值为
A．1～3
B．2～4
C．5～7
D．7～9
E．8～10
参考答案：C
患者的权利、义务有哪些？
Ms James has been a teacher_____ 1998. [ ]
A. in
B. since
C. for
D. at
