单项选择题
A.1(Z) B.2(Z) C.X1(Z) D.X2(Z)
A.ZIN(B)与GND B.XIN(B)与GND C.ZIN(Z)与GND D.XIN(Z)与GND
A.03-1与03-2 B.03-3与03-4 C.03-5与03-6 D.03-7与03-8
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