Cathodic protection involves supplying electrons to the metal to be protected from an external source. The external source maybe-未来题库

Cathodic protection involves supplying electrons to the metal to be protected from an external source. The external source maybe

Cathodic protection involves supplying electrons to the metal to be protected from an external source. The external source maybe be an external（）or by（）

A.dc power source

B.Alternating Power Source

C.A Galvanic Couple

D.Cathode

正确答案：dc power source； A Galvanic Couple

Tags:external source protection

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