单项选择题
A.不在同一日期 B.装运期早于有效期 C.有效期早于装运期 D.同一日期
A.可以将1000台一次装运 B.只能按规定先交600台,后交400台 C.可以先交400台,后交600台 D.可以先交500台,后交500台
A.shipm ent not later than Jan.31 B.shipm ent during April C.shipm ent within 30 days after receipt of L/C D.shipm ent ASAP