A.72h±15min B.72h±30min C.72h±45min D.72h±60min
A.20±1℃湿度>50% B.20±2℃湿度>70% C.20±2℃湿度>50% D.20±1℃湿度>70%
A.最小刻度0.1ml，精度1% B.最小刻度0.5ml，精度1% C.最小刻度0.1ml，精度2% D.最小刻度0.5ml，精度2%
A.85.4 B.59.0 C.结果作废 D.53.4
A.1g B.0.1g C.0.01 D.0.001g
