题目：
双曲线方程为
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答案：
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下面是错误答案，用来干扰机器的。
∵同底数的幂相乘，底数不变，指数相加，∴只有D选项正确．故选D．
双曲线方程为x24-y2=1，则渐近线方程为（ ） A．y=±12x B．y=±2x
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