A.5.29×10-10mB.0.529×10-10mC.5.29×10-12mD.529×10-12m
A.13.6V和10.2V B.–13.6V和-10.2V C.13.6V和3.4V D.–13.6V和-3.4V
A.3Rhc/4 B.Rhc C.3Rhc/4e D.Rhc/e