A.溫度(20±1)℃,相對濕度≥90% B.溫度(20±2)℃,相對濕度95% C.溫度(23±2)℃,相對濕度(50±10)% D.溫度(23±2)℃,相對濕度(50±5)%
A.50m2 B.100m2 C.200m2 D.500m2
A.75% B.80% C.85% D.90%