ZPW-2000R型无绝缘移频轨道电路自动闭塞，室内其他配线均采用( )阻燃塑料软线。[312050203]
A.(A)23×0.15mm
B.(B)23×0.55mm
C.(C)46×0.15mm
D.(D)46×0.55mm
正确答案是A
ZPW-2000R型无绝缘移频轨道电路自动闭塞，室内其他配线均采用( )阻燃塑料软线。[312050203]
A.(A)23×0.15mm
B.(B)23×0.55mm
C.(C)46×0.15mm
D.(D)46×0.55mm
正确答案是A