回溯法的效率不依赖于下列哪些因素（ ）\n \n \n \n \n \n \n

\n \n \n \n A.\n 满足显约束的值的个数\n

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\n \n \n \n B.\n 计算约束函数的时间\n

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\n \n \n \n C.\n 计算限界函数的时间\n

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\n \n \n \n D.\n 确定解空间的时间\n