（）does not belong to the mooring trial item. ["generator sets running trial","shafting intensity trial","the trail for pumps that working for ME","ME safety devices trial"]
能力
网络体系结构
TDCS保护地线接地电阻不得大于（）。 ["1Ω","3Ω","40Ω","5&Omega"]
根据“亚马逊的世界观”这讲，亚马逊一直注重（）。 ["选品","便捷","价格","以上都是"]
6502集中GJJ3-4线圈励磁电路故障会出现什么问题？
