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　　http://www.bbc.co.uk/arts/secretofdrawing/
　　This four part series, presented by Andrew Graham-Dixon, explores how drawing has shaped our lives. Join him to discover the history of drawing and its relevance to the modern world. 　　Episode 1: The Line of Enquiry 　　Andrew looks at artists who have chosen the natural world as their subject matter and explores how drawing has helped man t... (展开全部)