通信传输考试通信管道与通道工程设计规范单项选择题每日一练(2018.07.20)

A.2
B.1.5
C.1
D.0.5

A.0.6
B.0.7
C.0.8
D.1

A.0.5，0.4
B.0.4，0.3
C.0.5，0.3
D.0.3，0.4

A.2.0
B.1.0
C.0.5
D.1.5

A.2
B.1.5
C.1
D.0.5