石质渠道的横断面宜采用梯形
错误
暂无解析
与复式税则相比,单式税则()
Weshouldbepleasedtosendyousomesamplesofournewtypewriteronapproval,______ourownexpense.
Afterunpackingthecasewefoundthegoodsdidnot____withtheoriginalsample.
各国有关商事的国内立法不能作为国际商法的渊源。()
要约只有传达到受约人处方为有效。()