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本文有的观点与本刊已往若干文稿的观点相悖。对同一事物,不同的作者从不同的角度去审视,去解释,这在科学研究领域是允许的,也是正常的。真理会愈辩愈明。我们欢迎有更多的作者、读者参予讨论。
Some of the views in this article are contrary to the views of several previous articles. To the same thing, different authors examine and explain from different perspectives, which is permitted and normal in the field of scientific research. The truth will be more obvious defense more. We welcome more authors and readers to participate in the discussion.