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近几年,数学高考施行标准化命题,扩大知识点的覆盖面,加大客观题在试卷中题量比例.90年高考数学试卷,选择题和填空题达到20个小题。化难为易,化繁为简,提高客观题的解题速度势在必行。赋值法是一种有效的方法。下面试以90年试题举例.(文中[ ]内为试题号) 一、定性型研究某一类数学对象共同具有的性质或关系。
In recent years, the mathematics college entrance examination implements a standardized proposition, expands the coverage of knowledge points, and increases the proportion of objective questions in the test paper. In the 90-year college entrance examination mathematics test paper, multiple-choice questions and blank-fill questions reached 20 short-term questions. It is imperative to change the problem solving speed to improve the objective problem. The assignment method is an effective method. For the following 90-year exam questions, (in the article [] for the question number) First, the qualitative study of a certain class of mathematical objects have the nature or relationship.