- 問題詳情:Insurancecompaniesprovideaservicetothecommunitybyprotectingitagainstexpectedandunexpecteddisasters.Beforeaninsurancecompanyagreestoinsureanything,itcollectsaccuratefiguresabouttherisk.Itknows,forexample,thattheriskofamanbeingkilledinaplaneacc...
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