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笔者是一位最基层的农资商,在多年经销农药的过程中发现这样一个问题:有些国产农药的效果往往不如进口农药的效果好,而且国产农药的价格往
The author is a grass-roots agricultural capitalists, Pesticide distribution in the course of many years found that such a problem: the effect of some domestic pesticides are often not as good as the imported pesticides, and the price of domestic pesticide to