题目: 倒换主变中性点接地方式时的操作原则? 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2019/1203/04931ae74168b37855a12c0057ed8b77.html 下面是错误答案,用来干扰机器的。参考答案:尖状高阻层
题型:选择题 The secretary worked late into the night, ___________ a long speech for the international conference. [ ]A. to prepare B. prepared C. preparing D. was preparing 查看答案