郑衍生同志来信,对“黑度差换值函数法扣除背景”一文,提出了不同的看法,我们认为这是正常的,也是有益的。毛主席教导我们说:“艺术和科学中的是非问题,应当通过艺术界科学界的自由讨论去解决,通过艺术和科学的实践去解决,而不应当采取简单的方法去解决。”欢迎同志们进一步展开讨论,促进科学技术的发展,更好地为人民服务,为无产阶级政治服务。 Comrade Zheng Yuesheng wrote a different opinion on the article “Deducting the Background of the Black Difference Difference Function”, which we think is normal and beneficial. Chairman Mao taught us: “The non-issue in arts and sciences should be solved through free discussions in the scientific community of art circles and resolved through artistic and scientific practices rather than simple solutions.” Comrades further discussed the issue, promoted the development of science and technology, better served the people and served proletarian politics.