反渗透的产水量为（）

A.>95%
B.>96%
C.>97%
D.>98%

A.≦3vs/cm²
B.≦4vs/cm²
C.≦5vs/cm²
D.≦6vs/cm²

A.6-8mg/L
B.9-10mg/L
C.10-11mg/L
D.7-12mg/L