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要想顺利地解答选择题,不仅要熟练掌握和灵活地运用基础知识,更重要的是要掌握一定的技巧,才能达到快速求解的目的.由逻辑推理可知:若一般情形下结论成立,则特殊情形结论也成立;若特殊情形下结论不成立,则一般情况下结论也不成立.根据这一原理,对于题干具有一般性的选择题可采用特殊化的方法求解.特别是对于选择题中的单选题,由于其答案的唯一性,若用特殊代替一般进行验证或进行简单推算,即可把复杂问题简单化,使得结论明显,有立
To successfully answer multiple-choice questions, not only must you master and apply basic knowledge flexibly, but more importantly, you must acquire certain skills in order to achieve the goal of quick solution. From logical reasoning, we can see that if the general conclusion is true, The conclusion of the situation is also established; if the conclusion of the special case does not hold, then the general conclusion does not hold. According to this principle, the general choice of the title can be solved by a special method .Especially for the multiple choice Because of the uniqueness of the answer to the selected topic, if the special verification is used instead of the general verification or a simple calculation is carried out, the complicated problem can be simplified, so that the conclusion is obvious and there is a definite