Composite structure is a type of aircraft structure made of plastic resins reinforced with strong, lightweight filaments. Composite materials combine high strength and rigidity with light weight. ( )
A.Composite structure combines high strength and rigidity with heavy weight. B.Composite structure possesses the characteristic of high strength and rigidity. C.Composite structure' s strength and rigidity are more than that of metal strength, at the same time, Composite structure has light weight.正确答案B