A.0.25 B.0.5 C.1 D.2
A.實(shí)部為零的共軛復(fù)數(shù) B.相等的負(fù)實(shí)數(shù) C.相等的正實(shí)數(shù) D.正、負(fù)兩實(shí)數(shù)