问题描述：
[单选]
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)
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答案解析：无
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