我的数学教师
@@ My math teacher is used to taking off his overcoat as soon as he comes into the classroom.After that,he would tell us some news,or ask someone to answer a question or recite a formula.
数学教师
G633.6;G451.2;G715
2010-05-17(万方平台首次上网日期,不代表论文的发表时间)
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