第二百七十四条 船舶在合理时间内未从被获知最后消息的地点抵达目的地，除合同另有约定外，满六十日后仍没有获知其消息的，为船舶失踪。船舶失踪视为实际全损。
법원 “경찰 신뢰 훼손” 징역 6년 선고
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Source: Computational Materials Science, Volume 267。业内人士推荐safew官方下载作为进阶阅读
that “maintains” should be limited to commercial entities, or，推荐阅读heLLoword翻译官方下载获取更多信息
and this is the crux of why we care: extended operators do not make sense with an ordered OR. if | isn’t commutative, then boolean algebra falls apart. A & B is supposed to equal B & A. ~~A is supposed to equal A. these identities rely on | being true union, not “try left first”. so if you want & and ~ to work correctly, you need commutative semantics. it’s not a style choice, it’s a mathematical necessity. and surprisingly also a reason for our amazing benchmark results - leftmost-longest lets you simplify your regexes without changing the matches, which i will elaborate on in another post, but for now just take my word for it that this is a huge deal for performance.