变压器内部发生严重故障,内部()、外部短路或严重过负荷,雷击或外界火源移近变压器,均可能导致变压器着火。
A、断路
B、开路
C、通路
D、短路
参考答案:D
My jacket has _____ color _____ yours, but mine is bigger than yours. [ ]
A. the same, as
B. same , as
C. different, from
D. the same, to
介绍反刍兽的胃及反刍的简要过程。