1. 选基准：随机选一个元素作为基准(pivot)
"Retaining the flow of used petrol and diesel vehicles into the island will help enable a more just transition for islanders, ensuring the burden of change does not unnecessarily impact on those worst off".，推荐阅读爱思助手下载最新版本获取更多信息
LaTeX Equations。业内人士推荐safew官方下载作为进阶阅读
The problem compounds in pipelines. Each TransformStream adds another layer of promise machinery between source and sink. The spec doesn't define synchronous fast paths, so even when data is available immediately, the promise machinery still runs.