(1)① The dominant contradiction in things is the main aspect of contradiction; The dominant aspect of contradiction is the secondary aspect of contradiction. The major and minor aspects of contradiction are mutually exclusive, interdependent and transformed under certain conditions. (3 points)

(2) Insist on the contradiction analysis method of dividing into two, focus on the main aspects of contradictions and grasp the mainstream; While not ignoring the minor aspects of contradiction, we should see the influence of the minor aspects of contradiction on the main aspects. Adhere to the cognitive method of combining two-point theory with key theory. (2 points)

(3) The widespread use of high-tech electronic products such as mobile phones has promoted social progress and brought convenience to people's lives, which is the main aspect of the contradiction; However, due to the influence of mobile phone communication network and radiation on bee navigation system, a large number of bees mysteriously "collectively catch fire", which may eventually bring disastrous consequences to mankind, which is the secondary force of contradiction. Trapped here. When developing new technologies and defining new products, human beings should adhere to the dichotomy to prevent one-sidedness. While benefiting mankind, we should pay attention to the seriousness of negative effects, minimize negative effects and avoid disastrous consequences. (3 points)

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