旅客的人身伤亡或者自带行李、旅客车辆所载行李的灭失、损坏，是因船舶的沉没、碰撞、搁浅、爆炸、火灾或者船舶的缺陷引起的，承运人或者承运人的受雇人、代理人除非提出相反证据，应当视为其有过错。
Фото: Victor Boyko / Getty Images for Gucci。业内人士推荐wps作为进阶阅读
PostgreSQL Asynchronous Commit that can be used in a similar way to Mongo's j: false; significantly speeding up writes, at the risk of losing most recent data modifications: https://www.postgresql.org/docs/current/wal-async-commit.html. There also are Unlogged Tables, with changes not written to the WAL (Write Ahead Log): https://www.crunchydata.com/blog/postgresl-unlogged-tables，更多细节参见谷歌
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