单项选择题
To prevent a wooden hull from leaking you caulk it（）.
A.after drydocking，while the hull is moist
B.after drydocking，and the hull has dried
C.afloat，where it is leaking
D.afloat，in all accessible areas
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相关考题
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单项选择题
To predict the actual depth of water using the Tide Tables，the number obtained from the Tide Tables is（）.
A.the actual depth
B.added to or subtracted from the charted depth
C.multiplied by the charted depth
D.divided by the charted depth -
单项选择题
To develop maximum anchor holding power，the optimum angle between the anchor’s shank and the mooring lines is（）.
A.0 degrees
B.10 degrees
C.20 degrees
D.30 degrees -
单项选择题
There is something wrong with our radar．All kinds of objects can’t be clearly（）within the definite range.
A.shown
B.expressed
C.appeared
D.displayed
