单项选择题

A sheepshank is used to（）.

A.keep a line from fraying
B.join lines of unequal size
C.stop off a line
D.shorten a line

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热门试题

单项选择题A sextant having an index error that is off the arc has a（）.

A.positive correction
B.dip error
C.negative correction
D.semidiameter error

单项选择题A DECK，SPACE，AREA，ETC.，NOT PERMITTED TO BE ENTERED FOR SAFETY REASONS defines（）.

A.Restricted area
B.Closed area
C.Prohibited place
D.Forbidden place

单项选择题The Vessel is fully fitted with cargo（）.

A.beats
B.beasts
C.bacons
D.battens