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单选题
2021-07-17 18:30
A、<p><img class=\""kfformula\"" src=\""data:image\/png;base64,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\"" data-latex=\""\\frac {3} {2}\""><\/p>
B、<p><img class=\""kfformula\"" src=\""data:image\/png;base64,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\"" data-latex=\""-\\frac {3} {2}\""><\/p>
C、<p><span style=\""font-family: 微软雅黑, 'Microsoft YaHei';\"">1<\/span><br><\/p>
D、<p><span style=\""font-family: 微软雅黑, 'Microsoft YaHei';\"">-1<\/span><br><\/p>
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正确答案
D

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