对于公用配电变压器停电,采取负荷转移或其他措施未导致所供低压用户停电的情况,()对用户停电。
A、应视为
B、不应视为
C、统计
参考答案:B
— Do you know where John is?
— He was going to meet me earlier, but he didn't _____. [ ]
A. stay up
B. put up
C. show up
D. give up
密钥分发中心是一个独立的可信网络实体,其英文缩写是______。