Mathematics a set with an associative binary operation under which the set is closed, which contains an identity element and an inverse for every element in the set.
群：二元结合运算为闭合的数学集合，具有单位元素。集合中每一元素都有逆元素。
The search of identity of mathematics education of China and its further development were an urgent and important task facing educators in mathematics in China.
中国数学教育的界定与建设是我国数学教育界所面临的一个重要和紧迫的任务。
Thus we can improve the high school students 'identity about New Mathematics Curriculum and realize the value of New Mathematics Curriculum really.
从而提高高中生数学新课程认同度，使数学新课程的价值得以真正实现。
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