2. 计算机
  3. ( )is an open，distributed ledger that can record transactions between two parties efficientlv and in a verifiable and per

( )is an open，distributed ledger that can record transactions between two parties efficientlv and in a verifiable and per

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问题 (        )is an open，distributed ledger that can record transactions between two parties efficientlv and in a verifiable and permanent way．
选项 A、Internet of things
B、Block chain
C、Edge Computing
D、Artificial Intelligence
答案B
解析 参考译文  (         )是一种开放的、分布式的分记账，能够有效地、可核查和永久地记录双方之间的交易。
    A．物联网    B．区块链    C．边缘计算    D．人工智能
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