原创人:钱汪海老师出处:http://blog.sina.com.cn/s/blog_4d5314250100rdqb.html转载请注明出处 2010(2010.1.9) Pie ChartSome people believe that charity organizations should give the aid
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model answer: The three graphs of wheat exports each show a quite different pattern between 1985 and 1990. Exports from Australia declined over the five-year period, wh