The API recognizes that synchronous data sources are both necessary and common. The application should not be forced to always accept the performance cost of asynchronous scheduling simply because that's the only option provided. At the same time, mixing sync and async processing can be dangerous. Synchronous paths should always be an option and should always be explicit.
（二）在铁路、城市轨道交通线路上放置障碍物，或者故意向列车投掷物品的；
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人民法院认定该裁决违背公共利益的，应当裁定撤销。
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