测评领导绩效的基本方法有哪些？
An effective braking system for windlasses on rigs in deep water is a(n)（）. ["larger chain stopper","disc backstopping brake","hydraulic clutch","electrical regenerative braking system"]
烟草烟雾中与心脑血管疾病相关的主要致病成分是（） ["尼古丁","焦油","挥发性醛类","氧自由基","一氧化碳"]
海水泵填料函主要由盘根、填料筒、填料压盖和（）组成。 ["轴","油杯","排水管","传感器"]
测评领导绩效的基本原则是什么？
简述职务分析问卷法（PAQ）的优缺点。
