A.K5:00011111;K6:11111011 B.K5:00111111;K6:11110011 C.K5:01111111;K6:01111011 D.K5:00111111;K6:11111011
A.多模光纖 B.單模光纖 C.金屬光纖 D.以上均錯
A.0.99992 B.99.9992 C.0.9992 D.0.992