单项选择题
A.inform chief engineer officer immediately
B.stop the generator
C.let the duty officer in bridge determine how to do
D.wait for help
单项选择题 What is used for preventing pollution damage to the sea from ships?（）
单项选择题 However, where immediate action is necessary to ensure safety of the ship, its machinery and crew, it must be taken by the engineer in chargeWhat dose “it” mean in the sentence above?（）
单项选择题 There will usually be summaries or daily account tables for heavy oil, diesel oil, lubricating oil, and fresh water, which will be compiled（）