变压器的差动保护反应何故障?
参考答案:
套管、绕组及引出线相间短路,接地侧绕组及引出线的接地故障。
集体合同制度在协调劳动关系中的重要意义是什么订立集体合同应遵守哪些原则
After having a cup of tea, he asked for _____.
A.two more
B.more two
C.more than two
D.two cups