借用一道容易题,推开几扇方法窗
Publisher： 国家哲学社会科学学术期刊数据库
E-ISSN： 1001-8875|volume|12|59-60
ISSN： 1001-8875
Source： 数学教学通讯, Vol.volume, Iss.12, 2016-01, pp. : 59-60
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Abstract