题目

关于下列铁路枢纽站的名称说法正确的有（ ）A.①为南京 B.②为西安 C.③为兰州 D.④为上海 答案：【答案】C【解析】京沪和沪杭线交汇于上海；陇海线和宝成线交汇于宝鸡；京包线和兰新线交汇于兰州；京哈线和京沪线交汇于天津，故选C。--- Mum, could I have an MP3 like this? --- Certainly, we can buy ________ one, but as good as this. [　　] A．a cheapB．a cheapest C．a cheaperD．the cheapest