单项选择题 饮水试验分级中能1次喝完，但有噎呛属于( ) A．Ⅰ B．Ⅱ C．Ⅲ D．Ⅳ E．Ⅴ

未知题型 下列属于企业物流作业目标的是（ ）。A.整合运输与配送B.最小变异C.最低库存###S

单项选择题 You must be aware that the terms and conditions of a contract once ______ should be strictly ______ , failure to abide by them will mean violation of contract. A．signing, observed B．signed, observing C．signed, observed D．signing, observing