国家规定实验室三级水检验的PH标准为()。
A#A.5.0~6.0#B.6.0~7.0#C.6.0~7.5#D.5.0~7.5
B#A.5.0~6.0#B.6.0~7.0#C.6.0~7.5#D.5.0~7.5
C#A.5.0~6.0#B.6.0~7.0#C.6.0~7.5#D.5.0~7.5
D#A.5.0~6.0#B.6.0~7.0#C.6.0~7.5#D.5.0~7.5
A#A.5.0~6.0#B.6.0~7.0#C.6.0~7.5#D.5.0~7.5
B#A.5.0~6.0#B.6.0~7.0#C.6.0~7.5#D.5.0~7.5
C#A.5.0~6.0#B.6.0~7.0#C.6.0~7.5#D.5.0~7.5
D#A.5.0~6.0#B.6.0~7.0#C.6.0~7.5#D.5.0~7.5