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最佳答案：Though building subways costs a lot labour power，material resource and financial
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最佳答案：长城是中国也是世界上修建时间最长、工程量最大的一项古代防御工程.The Great Wall was China also is in the world th
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最佳答案：Official action taken mainly: 1. The construction of a large number of public tr
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最佳答案：吃饭都耽搁了,一定要采纳为满意答案哈.有意见可以讨论.Before constraction of a building , the work of relat
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最佳答案：all the people that heard the storythe man who was here yesterdaythe friend who