一、专题透析在近几年的中考命题中,出现了越来越多的开放探索题.所谓开放探索性问题是相对于中学课本有明确条件和明确结论的封闭型问题而言.狭义的理解开放就是正确答案不唯一的题目,从广义上讲,那些题目条件不完备或结论不明确,有待于进一步探索的问题都是开放性试题. First, the topic of dialysis In recent years, senior high school entrance examination questions, there has been more and more open exploration questions.The so-called open exploration issues relative to secondary school textbooks have a clear condition and a clear conclusion of the closed-ended issues. Open is the correct answer is not the only problem, in broad terms, those problems are not complete or the conditions are not clear, the issues to be further explored are open questions.