单项选择题
A.the ship is in a harbor
B.the ship is at anchorage
C.the ship is underway
D.all of the above
单项选择题 Lifeboat winches on a ship are required to be inspected and an entry made in the logbook. What should this entry include? （）
单项选择题 In writing up the logbook at the end of your watch，you make an error in writing an entry. What is the proper means of correcting this error? （）
单项选择题 In writing up the log book at the end of your watch，you make an error.which of the following is the way to correct the error（）.