A.0%~90%RH,无冷凝B.0%~95%RH,无冷凝C.5%~90%RH,无冷凝D.5%~95%RH,无冷凝
A.-5℃~+40℃B.-5℃~+50℃C.-10℃~+40℃D.-10℃~+50℃
A.2B.3C.4D.5