库存控制决策的要素主要有（）。 ["需求","订货","生产","库存费用","库存策略"]
各营业网点建立的客户投诉登记簿及其它相关档案材料至少保存（）以上。 ["半年","一年","二年","三年"]
对带有圆形诊断插座的车辆进行诊断时需要哪个硬件（） ["ICOM A","ICOM B","ICOM C","USB电缆"]
In a diesel engine,（） works as working medium and changes the heat energy to mechanical energy, changes the reciprocating movement to rotary moment（） ["fuel spray； the burning of the fuel","the burned gas mixture； connecting rod","medium shaft；crankshaft","the burned gas mixture； piston rod"]
哪些组件是新维修车间系统的硬件（） ["OPS","ISIS","ICOMA","IMIB"]
REB103型母差保护与RADSS型母差保护有何区别？
