- 問題詳情: Buyinginsurance(保險)isawayinwhichpeoplecanprotectthemselvesagainstlargelosses.Protectionagainstfireisonekindofinsurance.Largenumbersofpeoplepaysmallsumsofmoneytoaninsurancecompany.Althoughthousandsofpeoplehavepaidforfireinsurance,onlyafeww...
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