I hereby()that my vessel is fitted with a rudder angle indicator and an engine revolution indicator on the bridge in such a position that the pilot may read both without having to move away from his station; and that the rudder angle indicator and engine revolution indicator are in good working condition.
A. delay
B. state
C. delete
D. contai
冷却水系统的故障不会造成锅炉停运。
A. 正确
B. 错误
提供一种无条件匿名电子现金支付系统Ecash的公司是()
A. DigiCash
B. Netcash
C. Modex
D. ElectroCash
船员用救生衣配备的数量,应根据船员人数按()比例要求配备。
A. 100%
B. 90%
C. 110%
D. 80%