The sequence of parts in a generally used fuel oil supply system for a main engine is （） (1)tanks in the double bottom (2)centrifuges (3)service tank (4)settling tank (5)viscosity regulator
- A(1)-(2)-(4)-(3)-(5)
- B(1)-(4)-(2)-(3)-(5)
- C(1)-(3)-(2)-(4)-(5)
- D(1)-(5)-(4)-(2)-(3)