A.±5%、+5%、-5% B.±7%、+7%、-7% C.±7%、+7%、-10% D.±7%、+10%、-10%
A.超前0.95~滯后0.95 B.超前0.90~滯后0.90 C.超前0.80~滯后0.80 D.超前0.98~滯后0.98