A.the three month period immediately following the certificate's anniversary date
B.the three month period immediately preceding the certificate's anniversary date
C.three months either way of the certificate's anniversary date
D.the three month period centered on the certificate's anniversary date
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A.holding angle
B.fleet angle
C.fluke angle
D.shank angle
A.burial angle
B.penetration angle
C.fluke angle
D.holding angle
A.bower anchors
B.kedge anchors
C.spare anchors
D.stream anchors
A.relayed
B.delayed
C.conveyed
D.surveyed
A.opposite directions on the same line，tending to pull the material apart
B.opposite directions on the same line，tending to compress the object
C.opposite directions along parallel lines
D.the same direction along parallel lines
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The anchors on the bow are known as（）.
The boom stops are installed on an offshore crane to（）.
In the ship construction portfolio，materials which do not conform to ASTM or ABS specifications must also include the（）.
The document on a vessel，annually endorsed by an American Bureau of Shipping surveyor，is called the（）.
The above mentioned ship has been duly（）in accordance with the provisions of the convention referred to.
Cracks may be prevented from developing at the corners of welded plating inserts by（）.
The smallest size of flaw that can be detected on a radiograph examination of a weld will be indicated by the（）.
The annual survey for endorsement of a Load Line Certificate must be held within（）.
Chain slings are suitable for heavy slender articles，such as（）.
The angle at which the anchor flukes penetrate the soil is the（）.