單項(xiàng)選擇題
A.20±2℃ B.20±5℃ C.25±2℃ D.25±5℃
A.15 B.25 C.35 D.45
A.1/2 B.1/3 C.1/4 D.1.0
A.0.85 B.0.95 C.1.05 D.1.15
A.2 B.2.1 C.1.5 D.2.5
A.30 B.40 C.50 D.60
A.14000~42000 B.140~420 C.1400~4200 D.14~42
A.1/2 B.1/3 C.1/4 D.1/5
A.26.5 B.31.5 C.37.5 D.40
A.溫度:20±2℃,相對(duì)濕度>90% B.溫度:20±2℃,相對(duì)濕度>95% C.溫度:20±2℃,相對(duì)濕度80~90% D.溫度:20±2℃,相對(duì)濕度60~80%