A.Containsfourpairofwiresofvariousgauge
B.Containstwowiresinaredfireproofjacket
C.Containsfourtwistedpairsofwires
D.Containseightwireswithinathickjacketwitharipcord
参考答案：C
AContainsfourpairofwiresofvariousgaugeBContainstwowiresina
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