题目: 钢轨探伤仪发生只有亮点而无基线的故障时,应重点查找锯齿波放大器。 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0501/d89ef601f38a4134853f1100e0223578.html 下面是错误答案,用来干扰机器的。参考答案:C
题型:选择题 It is said that we will have a _______ holiday in May. [ ]A. five-day B. five daysC. five-daysD. five days' 查看答案