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笔者曾写了文[4],巧合的是,随后不久,又看到了文[3].文[3]与文[4]思考的是同一个话题,但结果迥异,孰是孰非,引起笔者的思索.通过研究,笔者对文[3]存在几点不同的认识,现撰写成文,供大家讨论.首先要说明的是,文[1]中的问题是一个“恒成立”问题,这在文[4]中有详细阐述,这里不再?
The author once wrote the article [4]. Coincidentally, shortly afterwards, he also saw the same topic in the article [3], article [3] and article [4], but the results were very different. The author’s thinking. Through the study, the author has several different understandings of the text [3]. Now he writes a essay for discussion. The first thing to note is that the problem in [1] is a “constant establishment” issue. This is explained in detail in [4]. Is it no longer here?