车辆单独供电的特点是发电功率较小,一般为()
A.1~35kW
B.3~10kW
C.5~25kW
D.10~50kW
参考答案:A
(2013·浙江,4)As the world's population continues to grow,the ________ of food becomes more and more of a concern.
A.worth
B.supply
C.package
D.list
某双电源线路采用检无压、检同期的重合闸方式,为加快切除重合永久性故障,检同期侧与检无压侧相同,同样没有重合闸后加速的措施