- 水是生命之源WateristheSourceofLifeWaterisveryimportant.Itisthesourceoflife.Everythingintheworldcan’tlivewithoutwater.Theproportionofwaterandaperson’sweightisabout70%.Peoplecanlivewithouteatingfoodforthreedays,buttheywillbeveryclosetodeathiftheydon...
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- Asthesourceoflife,waterisindispensable(不可缺少的)tohumanbeings.Peopleconsumemuchwaterinproductionanddailylife.Agricultureandindustryaccountformostofmankind'swaterusage.Withoutadequatewatersupplies,humanfutureisthreatened.Nowadayswatershortagestouc...
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- Linux系統中,source命令通常用“。”來代替,是一個點命令,與一般的命令有所不同,下面小編就給大家介紹下Linux中source命令的用法。用法:sourcefilename或。filenamesource命令是bashshell的內置命令,從CShell而來source命令的.另一種寫法是點符號,用法和source相同,從BourneShel...
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