You are ordering ship’s stores. Which statement is TRUE?（）
- AUp to five gallons of a flammable liquid may be stowed in the engine room
- BAll stores of line，rags，linens and other similar type stores must be certified by UL as being fire retardant
- CCylinders containing compressed gasses must be constructed and tested in accordance with the Bureau of Standards
- DAll distress flares when received must be stored in the portable magazine chest