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qi che , jin fang qian lie xian yan
Author(s): 
Pages: 31
Year: Issue:  8
Journal: Regimen

Abstract: <正> 尽管现代化的先进交通工具愈来愈广泛地服务于人类,但在我国广大的城市和农村,自行车仍不失为一种使用最广泛、相当重要的交通工具。工人、职员上班,学生上学,农民到田间劳动,自行车都成了他们理想的代步工具。骑自行车代替步行,不仅节省了许多时间,提高了
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