断路器红灯回路应串有断路器常闭触点。
参考答案：错
After Ya’an earthquake the school practiced an emergency drill showing the children how to find their “safe place”____.
A．calmly
B．regularly
C．automatically
D．specially
对运输距离在多少千米以内，不需要饲养的家禽、家畜，托运人提出不派人押运时，也可以托运？
