单项选择题
A.1%,50% B.5%,70% C.10%,100% D.5%,100%
A.TCH可用率 B.小区完好率 C.工单处理及时率 D.工单处理合格率
A.99.90%,99.96% B.98.50%,99.00% C.95.50%,97.50% D.95.50%,99.00%