个人面临的人身风险包括（） ["活得太长的风险","活得太短的风险","活得太惨的风险","责任风险","信用风险"]
1～10kV架空配电线路定期巡视市区一般（），郊区及农村每季至少一次。 ["每月一次","两个月一次","每季一次","每半年一次"]
试述科尔伯格的道德阶段理论。
1. import java.util.*； 2. public class TestSet { 3. enum Example { ONE， TWO， THREE } 4. public static void main（String[] args） { 5. Collection coll = new ArrayList（）； 6. coll.add（Example.THREE）； 7. coll.add（Example.THREE）； 8. coll.add（Example.THREE）； 9. coll.add（Example.TWO）； 10. coll.add（Example.TWO）； 11. coll.add（Example.ONE）； 12. Set set = new HashSet（coll）； 13. } 14. } Which statement is true about the set variable on line 12？（） [" The set variable contains all six elements from the coll collection， and the order is guaranteed to be preserved."," The set variable contains only three elements from the coll collection， and the order is guaranteed to be preserved."," The set variable contains all six elements from the coil collection， but the order is NOT guaranteed to be preserved."," The set variable contains only three elements from the coil collection， but the order is NOT guaranteed to be preserved."]
变桨距风力发电机组根据变桨矩系统所起作用可分为三种运行状态，不包括（） ["启动状态","欠功率状态","额定功率状态","故障状态"]
交联度
