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广州市“勗賢高級数学补習学校”(陈勗賢主办)借编印講义之名,大量地出版有关数理化参考用書十余种,并公开的發行到各地。这些書籍的編印十分粗糙,錯誤百出,对青年学生危害不小。如《高中立体几何难題例解》和《初中平面几何题解》,內容都是直接根据現行中学課本的習題作的解答。不少学生在买到这些“題
Guangzhou City, “Che Xian Senior Mathematics Tuition School” (organized by Chen Yuxian) By the publication of the handout, a large number of published about more than 10 kinds of physical and chemical reference books, and the public issue to all over. The printing of these books is very rough, mistakes, harm to young students is not small. Such as “high school three-dimensional geometry puzzle solution” and “junior high school geometry plane solution”, the content is based directly on the existing exercises in secondary school textbooks for the answer. Many students are buying these "questions