单项选择题
A.清洁提单;光票信用证;清洁检验报告 B.清洁检验报告;清洁提单;光票信用证 C.清洁提单;清洁检验报告;光票信用证 D.光票信用证;清洁检验报告;清洁提单
A.exemption from duty;escape clause;export drawback B.export drawback;escape clause;exemption from duty C.exemption from duty;export drawback;escape clause D.export drawback;exemption from duty;escape clause
A.In no time B.At a time C.At all times D.At no time