A few years later, in 1998, software developer Nick Szabo proposed using a similar kind of technology to secure a digital payments system he called “Bit Gold.” However, this innovation was not adopted until Satoshi Nakamoto claimed to have invented the first Blockchain and Bitcoin.
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// 对start, start+gap, start+2gap, ... 这组进行插入排序
那晚聊天聊到最后，妹妹们说，她们很能体会我的感受。毕竟，她们对爷爷奶奶与外公外婆，也有亲疏之别。
When Chávez became Venezuela's president in 1999, oil prices were climbing. In the early 2010s, a barrel would often fetch about $100, providing the government with plenty of money to pour into social programmes. But with current prices around the $65 mark, the country looks less like a reasonable investment.