企业生产物流计划按()的长短可分为年度生产物流计划、季度生产物流计划和月份生产物流计划。P218
A.计划期
B.时间跨度
C.生产计划
D.销售计划
参考答案:A
--The man in a black suit _______ be our youth worker.
--- I’m sure it _______ be him. I saw him in the laboratory building some minutes ago.
A.must; can’t
B.can; mustn’t
C.can; could
D.must; won’t
上颌第一磨牙牙根部的骨突
A.嵌体B.半冠C.烤瓷熔附金属全冠D.桩冠E.3/4冠