基于多元回归方法,研究消费者对黑龙江省“迎春黑蜂”品牌忠诚的影响。结果显示:品牌信任、品牌认知、感知价值、感知质量是驱动消......

By using mathematical reasoning, this paper demonstrates the mathematical intervening principle: “Virtual disease is to......

By using mathematical reasoning, this paper demonstrates the treatment principle: “Do not treat a disease after it has ......