关于胰的叙述,错误的是
C
暂无解析
Ourpaymentterms(付款方式)are___,irrevocableletterofcreditforthefullinvoicevalue.()
Theoldcouplehavebeenmarriedfor40yearsandneveronce_______witheachother.
ModernEnglishvocabularydevelopsthroughthefollowingchannelsEXCEPT______.
He________violinwhenIwanttosleep.