单项选择题
We have finished()and are ready for sailing.
A.load B.loading C.will load D.to load
单项选择题 To prevent the riser system from buckling under its own weight,upward tension is provided by the().
单项选择题 To()sanitary water from any vessel,an application shall be made to Harbor Authorities for approval.
单项选择题 These weights are()the ship’s discharging facilities.