农村寄宿制学校的公共区域应设置方便学生洗手的水龙头，原则上每个水龙头服务学生人数不超过（）人。
参考答案：50
His father________his hometown for twenty years.He really misses it.
A.has been away from B.left C.has left
融资租赁的优缺点？
