单项选择题
When carrying out the voyage trial, the M-E is not necessary to take（）trial.
A.starting B.running C.running-in D.direction changing
单项选择题 After repair, the voyage trial of the M-E should be done （）
单项选择题 In the M-Emooring trial, the starting trial is carried under（）
单项选择题 When carrying out mooring trial, if the M√Ecan’t start normally, you should （）
