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yi dao chu zhong sheng neng jie de gao kao ti
Author(s): 
Pages: 48-48
Year: Issue:  4
Journal: ZHONGXUE SHUXUE ZAZHI(CHUZHONG BAN)

Keyword:  高考题平面直角坐标系初中生第17题数学卷江苏省垂直;
Abstract: 2012年江苏省高考数学卷第17题:题目如图,建立平面直角坐标系xOy,x轴在地平面上,Y轴垂直于地平面,单位长度为1千米.某炮位于坐标原点.
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