p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; text-align: justify; font: 14.0px 'PingFang SC'; color: #000000; -webkit-text-stroke: #000000}span.s1 {font-kerning: none}span.s2 {font: 14.0px 'Times New Roman'; font-kerning: none}span.s3 {font: 14.0px Helvetica; font-kerning: none} 通常情况下,在水溶液中, Cu( I ) 比 Cu( II ) 更稳定