A.較好眼的矯正視力低于0.3 B.較好眼的矯正視力低于O.02 C.較好眼的矯正視力低于0.1 D.較好眼的矯正視力低于O.05 E.以上都不是
A.50m B.2.5m C.3m D.5m E.6m
A.0.1 B.0.04 C.0.02 D.0.2 E.O.06