A.>5.0
B.5.0~7.0
C.5.5~8.0
D.6.0~8.5
E.6.5~8.5
[单选题]我国瓶装饮用纯净水卫生标准规定pH为A.>5.0B.5.0~7.0C.5.5~8.0D.6.0~8.5E.6.5~8.5
[单选题]我国瓶装饮用纯净水卫生标准规定pH为A.>5.0B.6.0~8.5C.5.0~7.0D.6.5~8.5E.5.0~8.5
[单选题]我国瓶装饮用纯净水卫生标准规定pH范围为A.>5.0B.5.0~7.0C.5.5~8.0D.6.0~8.5E.6.5~8.5
[单选题]我国瓶装饮用纯净水卫生标准规定pH范围为A.>5.0B.5.0~7.0C.5.5~8.0D.6.0~8.5E.6.5~8.5
[单选题]我国《瓶装饮用纯净水卫生标准》规定pH是A.>5.0B.5.0~7.0C.5.0~8.5D.6.0~8.5E.6.5~8.5
[单选题]我国《瓶装饮用纯净水卫生标准》规定pH是()。A . >5.0B . 5.0~7.0C . 5.0~8.5D . 6.0~8.5E . 6.5~8.5
[单选题]在我国瓶装饮用纯净水卫生标准中,规定pH值为( )。A.5.O~6.5B.5.0~7.0C.5.0~8.5D.6.O~8.5E.6.5~8.5
[单选题]我国瓶装饮用纯净水卫生标准中规定pH值为下列何值范围?( )。A.>5.0B.5.0~7.0C.5.0~8.5D.6.0~8.5E.6.5~8.5
[单选题]我国瓶装饮用纯净水卫生标准中规定pH值为下列何值范围?( )。A.>5.0B.5.0~7.0C.5.0~8.5D.6.0~8.5E.6.5~8.5
[单选题]我国瓶装饮用纯净水卫生标准中规定pH值为下列何值范围?( )。A.>5.0B.5.0~7.0C.5.0~8.5D.6.0~8.5E.6.5~8.5