![Ifweareaskedexactlywhatweweredoingayearago,weshouldprob...]( "Ifweareaskedexactlywhatweweredoingayearago,weshouldprob...")
- 问题详情：Ifweareaskedexactlywhatweweredoingayearago,weshouldprobablyhavetosaythatwecouldnotremember.Butifwehadkeptabookandhadwrittenitinanaccount(陈述)ofwhatwedideachday,weshouldbeabletogiveananswertothequestion.Itisthesameinhistory.Manythingshavebeen...
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