修配信号工(中级)单项选择题每日一练(2018.11.25)

A.2.0
B.3.0
C.2.5
D.1.5

A.0.5
B.1
C.2
D.0.1

A.0.5
B.1.0
C.0.8
D.1.5

A.0.5－0.1
B.0.5+0.1
C.0.5
D.1

A.2+1
B.2
C.2±1
D.1