单项选择题
A galley grease fire on the stove may be extinguished using（）.
A.water B.foam C.the range hood extinguishing system D.fire dampers
单项选择题 A gypsy or gypsyhead is a（）.
单项选择题 A hydrostatic release mechanism for a liferaft（）.
单项选择题 A hygrometer is a device used for determining（）.
