A.多頭持倉(cāng)增加 B.多頭持倉(cāng)減少 C.空頭持倉(cāng)增加 D.空頭持倉(cāng)減少
A.Ag99.99 B.Au99.99 C.Pt99.95 D.Au100g
A.8% B.1% C.15% D.20%