船舶电工船舶电工综合练习单项选择题每日一练(2018.10.31)

A.黑白
B.红黄
C.黄绿
D.红绿

A.800mm
B.1000mm
C.1200mm
D.1500mm

A.1MΩ
B.5MΩ
C.10MΩ
D.15MΩ

A.±1.5%
B.±2.0%
C.±2.5%
D.±3.0%

A.5ppm
B.10ppm
C.15ppm
D.20ppm