继电保护及自动装置的投入和解除顺序:先投入()回路;()回路;()回路;最后投入()。
参考答案:交流电压;交流电流;直流回路;保护压板
All the villagers went into the forest the lost boy. [ ]
A. look for
B. find out
C. search
D. in search of