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马光喜老师和吴健老师提供的“二次根式”自测题,基本上选自2000年各地中考试题,供同学们练习和自我测试.从中考试题来看,二次根式的繁难计算极少,但要求学生概念清楚,运算合理、迅速、正确.
The “secondary roots” self-test questions provided by Ma Guangxi and Wu Jian are basically selected from the 2000 mid-level exam questions for students to practice and self-test. From the mid-test questions, the secondary roots are rarely calculated. However, students are required to have a clear concept and the operation is reasonable, rapid and correct.