人工接地体材料可采用( )
AA.铝板,B.螺纹钢,C.角钢,D.钢管,E.圆钢
BA.铝板,B.螺纹钢,C.角钢,D.钢管,E.圆钢
CA.铝板,B.螺纹钢,C.角钢,D.钢管,E.圆钢
DA.铝板,B.螺纹钢,C.角钢,D.钢管,E.圆钢
EA.铝板,B.螺纹钢,C.角钢,D.钢管,E.圆钢
AA.铝板,B.螺纹钢,C.角钢,D.钢管,E.圆钢
BA.铝板,B.螺纹钢,C.角钢,D.钢管,E.圆钢
CA.铝板,B.螺纹钢,C.角钢,D.钢管,E.圆钢
DA.铝板,B.螺纹钢,C.角钢,D.钢管,E.圆钢
EA.铝板,B.螺纹钢,C.角钢,D.钢管,E.圆钢