单项选择题
A simplified construction plan may be included in the ship construction portfolio provided it adequately defines the（）.
A.areas where special materials are used B.hazardous areas C.location of emergency repair equipment D.type and strength of materials used
单项选择题 A Kort nozzle is a(n)（）.
单项选择题 A hydraulic accumulator aboard a ship is designed to（）.
单项选择题 A fuel-air mixture below the lower explosive limit is too（）.
