如图1,在平面直角坐标系中,点o为坐标原点,点a(-1,0),点b(0, 3 ). 刷卷子,在线刷卷子,小学试卷,初中试卷,高中试卷,期中 Template




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tomski如图1,在平面直角坐标系中,点o为坐标原点,点a(-1,0),点b(0, 3 ). coloring