空压机的空气过滤器一般有几种？
配电自动化主站系统有哪些应用功能？
评价托幼机构的物质条件通常可以采用得标准是（）。 ["数量","素质","质量","效率"]
During maneuvering operations for a direct reversing large, low-speed, main propulsion diesel engine, which of the following actions is used to stop the shaft from turning prior to reversing the engine rotation?（） ["Flywheel inertia","Admission of starting air","The way of the vessel","securing of fuel to the cylinder"]
自我评价的运用可体现在以下几个方面（）。 ["家长评价问卷","建立幼儿发展档案","对照计划进行评价","教师自我评价问卷"]
什么是配电自动化主站系统？其建设原则是什么？
