单项选择题
（）port anchor, one shackle in water.
A. Heave in B. Cast off C. Let go D. Heave away
单项选择题 Anchor is （）.
单项选择题 Where is（）(制链器螺杆)?
单项选择题 Each line has a large eye splice at the end. The eye is placed over a （）(系缆桩) .
