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关注:1
2013-05-23 12:21
求翻译:229. For the chemical fertilizers used, what is the distribution of N, P and K that has been used for each 种植地区 for 玉米 in percentages?是什么意思?![]() ![]() 229. For the chemical fertilizers used, what is the distribution of N, P and K that has been used for each 种植地区 for 玉米 in percentages?
问题补充: |
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