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立体几何是高中数学的重要内容之一,在高考中常以填空、选择和综合题等形式出现,旨在考查学生的空间想象能力和逻辑推理能力,在历年高考数学试卷中占有较大的比例,如今年全国数学文科卷的第11、19题和理科卷的第10、16、19题,主要体现在位置关系和量化求值问题上,淡化了以往复杂
Three-dimensional geometry is one of the important contents of high school mathematics. It often appears in the college entrance examination in the form of filling in vacancy, choice and comprehensive questions. It aims at examining students’ ability of spatial imagination and logical reasoning, occupying a large proportion in college entrance examination mathematics papers over the years, Nowadays, the 11th and 19th issues of National Mathematics and Arts Volume and the 10th and 19th and 19th volumes of Science Volume are mainly reflected in the problem of positional relationship and quantitative evaluation, which has weakened the complexity of the past