Ourpaymentterms(付款方式)are___,irrevocableletterofcreditforthefullinvoicevalue.()
Thenewspaperwillhavetoclosedownifitcannotincreaseits________considerably.
Beforethe16thcentury,Latinwastaughtandlearnedfor____________.
Whichofthefollowingisnotaninternationalvisitor?
Hermothercan’tspeakEnglish________French,butisgoodatJapanese.