马家窑文化的彩陶主要类型
MF30型万用表采用的是()测量机构。 ["电磁系","感应系","磁电系","电动系"]
车钩钩头肩部与冲击座留有()mm的距离。 ["60","80","100","110"]
修理临修故障时,闸瓦插销中部剩余厚度不小于()。 ["12mm","10mm","8mm","6mm"]
适用于下属精明强干,所处理事情复杂多变,领导对情况也不甚清楚,需要充分发挥下属主动性和创造性的授权类型是() ["刚性授权","弹性授权","惰性授权","模糊授权"]
波特的竞争战略思想