微电子技术的发展包括（）。 ["玻璃真空管阶段","半导体晶体管阶段","集成电路的研制成功阶段","集成电路的迅速发展阶段"]
The service life of distress signals must be not more than（）. ["forty two months from the date of manufacture","thirty six months from the date of the last inspection","twenty four months from the date of approval","twelve months from the date of purchase"]
根据要确定操作主控角色，不可用下列活动目录控制台其中的哪一个（）。 ["AD用户和计算机","AD域和信任关系","AD架构","AD数据库"]
N52发动机的电动水泵拆下来后在安装前要注意什么事项（） ["要竖立放置","在泵里必须有冷却液，防止干了粘住住叶片泵","在安装前试转叶片，是否卡住","用GT1或DIS排空，也可以人手排空"]
The regulations require that inspected vessels on an international voyage，other than small passenger vessels，must carry which of the following distress signals on or near the navigating bridge?（） ["12 hand red flares","12 rocket parachute flares","12 hand combination flares and orange smoke signals","6 hand red flares，and 6 hand orange smoke signal"]
如何降低高土壤电阻率地区接地装置的接地电阻值？
