()有借方销账码的内部账时产生销账码,()该内部账时,必须通过销账码转出.. ["A、借记、贷记","B、贷记、借记","C、贷记、贷记","D、借记、借记"]
流通加工的功能有() ["进行原材料深加工","改变功能,促进销售,提高效益","提高原材料和加工设备的利用率","提高物流效率,降低物流成本"]
空气呼吸器中,应将高压空气的压力从()兆帕降至0.7兆帕左右,减压器上装有中压安全阀、压力指示与余压警报器,空气输出导管. ["50","30","20"]
空气呼吸器中,气瓶储存的最高使用工作压力为()兆帕. ["50","30","20"]
发生在那些阶段的延迟属于形成生产延迟() ["贴标签","包装","装配","发送"]
华北平原直接与()()()相连。