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【单选题】
近年来,随着比特币、CO等话题的火爆,区块链这一概念开始走进人们的视野,中外科技公司也纷纷“拥抱”区块链。虽然一些打着区块链旗号的“炒币”事件给这一新技术带来一些负面影响,也引起了各国政府的重视和监管,但专家们普遍认为区块链技术有望成为继互联网、人工智能之后又一项颠覆性技术。现实中,“区块链+”已涉及金融、物流、医疗健康、文娱传媒、法律服务等各领域,用区块链技术实现食品溯源、音乐数字版权确权、证据保全、公益善款追寻等应用也已走进百姓生活。以上材料说明
A.
新事物与旧事物的融合推动社会发展
B.
对现存事物的否定中包含着对未来事物的肯定
C.
矛盾的性质主要是由矛盾的主要方面决定的
D.
量变是质变的必要准备
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keep a good mood.
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查看完整题目与答案
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