A.is calling at B.are calling at C.is calling on D.are calling on
单项选择题Stand by()VHF CH16.
A.of B.on C.in D.at
单项选择题M V Yanyuan No.1.()is your course and speed?
A.When B.Which C.That D.What
单项选择题When()the pilot embark?
A.will B.shall C.can D.may
单项选择题On which side()I rig the pilot ladder.
A.will B.can C.shall D.may
单项选择题My ETA()Cheng Shan Tou lighthouse is 0900 hours local time.
A.of B.in C.on D.at