A.絕對(duì)濕度計(jì) B.飽和濕度計(jì) C.毛發(fā)濕度計(jì) D.通風(fēng)濕度計(jì)
A.-20 B.-30 C.-10 D.0
A.75%~80% B.70%~75% C.65%~70% D.60%~65%