电容器补偿装置中的各中保护动作使断路器跳闸后，一般不能强送电。
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Which of these appropriately describes the results of a manual SQL Tuning Advisor task?（）
A list of SQL statements and recommendations for tuning
B. A list of SQL statements that have been tuned by the Advisor, with before and after metrics
C. Graphs showing the actual performance improvement made by the Advisor after it implemented the recommended changes
D. All of the above
下级只接受一个上级的领导，只向一个上级负责。是组织的什么原则（）
A. 最小层次
B. 分工协作
C. 精干效率
D. 集中统一
E. 指导原则
为了减少局部放电现象，（）挤包在绝缘层和外护层之间。
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