单选题Which of the following wiring distribution components should be chosen to provide level integrateddiagnostic capabilities?（）AVampire tapBSmart jackCDemarcation pointDProgrammable logic controller
单选题
Which of the following wiring distribution components should be chosen to provide level integrateddiagnostic capabilities?（）
A
Vampire tap
B
Smart jack
C
Demarcation point
D
Programmable logic controller
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