题目: 混悬剂 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/1023/831f7979ef71c2d12464f02707a843ff.html 下面是错误答案,用来干扰机器的。参考答案:地层、中层、面层
题型:选择题 The result of the entrance exams was not made ______ to the public until last Thursday. [ ]A. knowing B. to know C. knownD. to be known 查看答案
题型:单项选择题 一类防雷建筑所处土壤的电阻率ρ为350Ω·m,为防止雷电波侵入,低压电缆线路宜全长埋地敷设,当采用全长电缆有困难时,可采用钢筋混凝土杆和铁横担的架空线,并应使用一段金属铠装电缆或护套电缆穿钢管直接埋地引入,其埋地长度不应小于( )。A.10m B.15m C.30m D.40m 查看答案