单项选择题
A.spade B.saw C.spanner D.side
饮用水注入管（）A. fresh water filling pipeB. bilge water filli...
单项选择题饮用水注入管（）
A. fresh water filling pipe B. bilge water filling pipe C. drinking water filling pipe D. sea water filling pipe
淡水注入管（）A. fresh water filling pipeB. sea water filling ...
单项选择题淡水注入管（）
A. fresh water filling pipe B. sea water filling pipe C. ballast water filling pipe D. bilge water filling pipe
测深管（）A. sounding pipeB. steel pipeC. plastic pipeD. woo...
单项选择题测深管（）
A. sounding pipe B. steel pipe C. plastic pipe D. wooden pipe
