单项选择题
The chief officer estimated the broken space（）3500 cubic feet.
A.at B.by C.with D.in
单项选择题 The figures from the respective hatches differ（）those on the original plan.
单项选择题 The giving-way vessel has a same meaning of（）.
单项选择题 The master should（）necessary precautions to prevent accidents or damage.
