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【单选题】
场景(五) 某机电工程安装公司承包本市某化工厂车间的洁净空调工程安装任务。其洁净空调设计等级为N7级，并安装了高效过滤器。为保证工程质量，机电安装公司在风管制作、系统严密性检验、系统调试等关键工作中采取了相应的措施。空调工程在竣工验收后，进行了综合效能测定。由于测定结果均符合设计要求，得到业主的好评。 根据场景(五)，回答下列问题。 按( )分类，可将空气净化系统分为整体式和装配式。
A.
作用范围
B.
气流组织
C.
构造
D.
用途
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