单项选择题

A.排放浓度≤960mg/m3,排放速率≤170mg/m3
B.排放浓度≤960mg/m3,排放速率≤85mg/m3
C.排放浓度≤480111g/m3,排放速率≤170mg/m3
D.排放浓度≤480mg/m3,排放速率≤85mg/m3