机舱失火,在封舱施放CO2前应().
A、切断油路、电路
B、启动应急发电机
C、切断通风
D、A+B+C
参考答案:D
不符合慢性肺心病心电图表现的是()
A.右束支传导阻滞
B.SV1+RV5≥1.05mV
C.电轴右偏
D.V1和V2导联出现QS波
E.肺型P波
A vessel with a small GM will().
A.have a large amplitude of roll
B.provide a comfortable ride for the crew and passengers
C.have drier decks in heavy weather
D.be likely to have cargo shift in heavy weather