A.10 B.15 C.20 D.30
A.小于20 B.大于20 C.大于等于20 D.小于等于20
A.0-100mm,±1.5%(0~+50℃) B.0-20mm,±0.5%(0~+50℃) C.0-50mm,±1.0%(0~+50℃) D.0-100mm,±2.0%(0~+50℃)