"十二五"期间,中国铁路建设将维持大规模投入.预计"十二五"期末,中国铁路营业里程将达12万公里以上.虽然,众多中国企业已经纷纷"搭上"高铁,但在高端配套领域,国内配套企业的缺席,更应引发
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/28 00:39:48
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