请选择下面说法中正确的一项()。
A
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Ihopethatitispossibletoachievethisobjectivebycallingonthesmokers________goodjudgmentandshowconcernforothersratherthanbyregulation.
Ourpaymentterms(付款方式)are___,irrevocableletterofcreditforthefullinvoicevalue.()
“Thedignityofmovementofanicebergisduetoonlyone-eighthofitbeingabovewater.”This“iceberg”analogyaboutprosestylewasputforwardby().