题目

—Sorry, what did you say just now? —I asked______. A．when did he leave                          B．where you are from C．who will you go with                        D．how I could get there 答案：D到2020年我国将建成“四横四纵”铁路快速客运通道。高铁运输对下列交通运输市场冲击较大的是①水运       ②管道            ③航空        ④高速公路A．①②B．①③C．③④D．②④