【单选题】
A To simplify the overall master wiring diagram to make it easy to understand,complox systems should be described in terms of functional interconnections
B The overall master wiring diagrams are too complex to be understandable so the presentation of the systems shall be simplified and the interconnections should be plainly noted
C To make the wiring diagrams simplified and understandable,the complex systems should be descrbed in system functions. The connection of each system shall be presented clearly.
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