Not that John doesn't want to help you, ________ i Not that John doesn't want to help you, ________ it is beyond his power.A but th 分类:河南理工大学-采矿工程-井巷工程 题型:选择题 查看答案
It's twelve o'clock, I think I must be off now. It's twelve o'clock, I think I must be off now.Oh,really? I it at 分类:河南理工大学-采矿工程-井巷工程 题型:选择题 查看答案
副井井筒与井底车场连接部分的一段断面扩大的巷道称为 副井井筒与井底车场连接部分的一段断面扩大的巷道称为A 马头门B 箕斗装载硐室C 石门D 交岔点 分类:河南理工大学-采矿工程-井巷工程 题型:选择题 查看答案