专用变用户报装容量在315kVA以下者，可采用低压三相四线制计量方式。
以下属于桥跨下部结构的是（）。 ["支座系统","桥墩","桥台","墩台基础"]
The lifeline of a life float or buoyant apparatusshall（）. ["be at least 3\/8 inch diameter and properly secured around the sides and ends of the device","be festooned in bights not longer than three feet long","have a seine float in each bight unless the line is an inherently buoyant material","All of the above"]
全局目录服务器可以使用户找到整个目录林中的信息。
下列哪个项目不是包玉刚先生为宁波大学投资捐建的？（） ["风雨操场","室内游泳池","图书馆","宁波大学4号楼"]
什么是基本医疗保险统筹基金的起付标准？
