Once a decision has been made, all of us should ________ it.[ ]

A. direct to  

B. stick to

C. lead to  

D. refer to

电气设备发生短路、过负荷、接触不良、电火花等是造成电气设备发生（）的主要原因

A、停电

B、电气火灾

C、漏电

D、短路