有助于了解外伤性低眼压原因的检查()
A.OCT
B.UBM
C.VEP
D.多焦ERG
E.视野
参考答案:B
银锌电池广泛用作电子仪器的电源,它的充电和放电过程可表示为: Ag2O+Zn+H2O2Ag+Zn(OH)2。此电池放电时负极反应的生成物是 [ ]
A.Ag
B.Zn(OH)2
C.Ag2O
D.Zn
A fire in a ballast pumproom can be brought under control with minimal impact on stability by().
A.cooling the outside bulkheads with water
B.shutting all sources of air into the compartment
C.closing the sea chest
D.flooding the compartment with salt water