“ 区块链”本身具备的优势有 （       ）。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69632' and id < 4513490 and id<>'4513490' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69632' and id > 4513490 and id<>'4513490' order by id asc limit 5