Once a transaction is confirmed, it is placed in a block after the confirmation. All of the blocks are chained together to create a permanent history of every transaction.
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Credit: Samsung，这一点在夫子中也有详细论述
The employment slowdown has raised concern about the health of the economy, but evidence of wider deterioration is elusive.
表面的原因并不复杂——大宗商品价格下跌。超级周期结束，铜价回落，矿业投资减弱，这是几乎所有资源出口国都会面临的冲击。但更深层的原因在于，秘鲁极不稳定的政治环境。