单项选择题
Bridge orders must be （） and a record of any required changes in speed and direction should be kept.
A.slowly carried away
B.carried out with a period of delay
C.promptly carried out
D.paid by the captain
单项选择题 When under maneouvring conditions with the machinery being manually operated the control unit or console should be （）
单项选择题 At the beginning of the watch the current operational parameters and the condition of all machinery should be verified and also the log readings should correspond with those （）.
单项选择题 During an engine room watch if immediate action is necessary to ensure safety of the ship its machinery and crew （）