A.±0.5%以內 B.±1%以內 C.±2%以內 D.±3%以內 E.±5%以內
A.<0.1s B.<0.5s C.<1s D.<1.5s E.<2s
A.≤±0.1% B.≤±0.2% C.≤±0.5% D.≤±1% E.≤±2%