在下列工艺中，_____的出水水质最好。 In the following process, the effluent quality of _____ is the best.A．慢速渗滤 Slow infiltration B．快速渗滤 Rapid infiltration C．地表漫流 Surface flow D．湿地系统 Wetland system

单项选择题

在下列工艺中，_____的出水水质最好。
In the following process, the effluent quality of _____ is the best.

A．慢速渗滤
Slow infiltration
B．快速渗滤
Rapid infiltration
C．地表漫流
Surface flow
D．湿地系统
Wetland system