马尔萨斯所说的人口原理包括（）。 ["人口必然地为生活资料所限制。","失业和贫困并非社会制度造成，而是人口自然法则作用的结果。","只要生活资料增长，人口一定会坚定不移地增长，除非收到某种非常有力而又显著的抑制的阻止。","这些抑制，和那些遏制人口的优势力量并使其结果与生活资料保持同一水平的抑制，全部可以归纳为道德的节制、罪恶和贫困。"]
Each fire pump on a ship must have a pressure gauge located at（）. ["the pump discharge","the manifold connection","each fire station discharge","the pump statio"]
定点零售药店，是为城镇职工基本医疗保险参保人员提供（）的零售药店。 ["处方调配服务","处方外配服务","药品供应服务","药学咨询服务"]
Each fire hydrant serving machinery spaces containing oil fired boilers，internal combustion machinery，or oil fuel units must be equipped with a（）. ["fireman's outfit","low-velocity spray applicator","marine strainer","pick axe"]
下列不是重农学派的特点的是（）。 ["理论实质与外观的矛盾","自然秩序","以货币积累为目的","重视农业"]
室内消火栓的维护保养的主要内容是什么？
