229.JSBXC-850型时间继电器连接端子51-52时，动作时间为()。[331010103]
A.(A)180s±27s
B.(B)180s±9s
C.(C)180s±18s
D.(D)180s±10s
正确答案是A
229.JSBXC-850型时间继电器连接端子51-52时，动作时间为()。[331010103]
A.(A)180s±27s
B.(B)180s±9s
C.(C)180s±18s
D.(D)180s±10s
正确答案是A