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[单选题]

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)

参考答案与解析：

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