单项选择题X 纠错
A.40mm B.50mm C.60mm D.70mm
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单项选择题
A.10%~15% B.10%~20% C.10%~25% D.10%~30%
A.0.04V B.0.05V C.0.06V D.0.07V
A.1s B.1.5s C.2s D.2.5s
A.1.25~1.30mm B.1.25~1.40mm C.1.25~1.50mm D.1.25~1.60mm
A.55% B.65% C.75% D.85%
A.并励 B.串励 C.他励 D.复励
A.43% B.54% C.57% D.60%
A.重联 B.牵引 C.制动 D.故障励磁
A.750V B.760V C.770V D.780V
A.60℃ B.65℃ C.70℃ D.75℃
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