单项选择题
If your vessel is dragging her anchor in a strong wind，you should（）.
A.shorten the scope of anchor cable B.increase the scope of anchor cable C.put over the sea anchor D.put over a stern anchor
单项选择题 Production of mechanical foam by a portable in-line foam proportioner（）.
单项选择题 Marline is（）.
单项选择题 LIFTING THE ANCHOR FROM THE BOTTOM is called（）.
