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化学选择题在各类考试中一直是主要题型,可以全面考查学生掌握化学知识、物质的性质、综合应用的情况,决定了成绩的优劣。求解选择题时既要快速,又要较高的正确率,自定义符号法求解选择题时可以识别陷阱,排除干扰因素,寻找解题的依据,稳扎稳打,实现较好的成绩。自定义符号法求解选择题时分三步:(1)分析题意。(2)寻找依据。(3)划标记。在做题时,准备红色笔、铅笔、签字笔各一支。结合学习经验和个人的习惯,创
Chemistry choice questions in all kinds of examinations has been the main type of questions, you can fully examine the students master the chemical knowledge, the nature of the material, the comprehensive application of the situation, determines the merits of the results. Solving multiple-choice questions is not only fast, but also a high accuracy, custom symbolic solution to multiple-choice questions can identify traps, remove the interference factors, to find the basis for solving problems, steady, to achieve better results. Custom symbolic solution to multiple-choice questions in three steps: (1) Analysis of the questions. (2) find the basis. (3) mark the mark. When doing questions, prepare a red pen, pencil, pen each one. Combination of learning experience and personal habits, create