A.>2.5mv B.>5mv C.>10mv D.>15mv
A.Ⅰ類適應(yīng)癥 B.Ⅱa類適應(yīng)癥 C.Ⅱb類適應(yīng)癥 D.Ⅲ類適應(yīng)癥
A.30% B.35% C.40% D.50%