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若复数z=(a2﹣2a)+(a2﹣a﹣2)i为纯虚数,则实数a的值等于 .
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高二下学期数学《2017-2018学年吉林省舒兰一中、吉化一中、九台一中、榆树实验中学等八校联考高二(下)期中数学试卷(理科)》真题及答案
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