A.E; B.0; C.2E; D.3E;
A.XL>XC; B.XL<XC; C.XL=XC; D.R+XL>XC;
A.無功功率與有功功率之比; B.有功功率與視在功功率之比; C.無功功率與視在功功率之比; D.有功功率與無功功率之比;