单项选择题
A.Weekly Editions B.Quarterly Editions C.Annual Editions D.Monthly Editions
Admiralty Notices to Mariners are published （）.A.every ...
单项选择题Admiralty Notices to Mariners are published （）.
A.every day B.every week C.every month D.every year
A storm is forecast for the area where your vessel is m...
单项选择题A storm is forecast for the area where your vessel is moored. For its safety you should put （）.
A.more slack in the mooring lines B.a strain on the mooring lines C.chafing gear on the mooring lines D.grease on the mooring lines
A steep barometric gradient indicates （）.A.calmsB.light...
单项选择题A steep barometric gradient indicates （）.
A.calms B.light winds C.strong winds D.precipitation
