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} 镧系元素原子不具有磁性的是
A.
p.p1 {margin: 0.0px 0.0px 0.0px 36.0px; text-align: justify; font: 14.0px 'Times New Roman'; color: #000000; -webkit-text-stroke: #000000}span.s1 {font-kerning: none} Ln
B.
p.p1 {margin: 0.0px 0.0px 0.0px 36.0px; text-align: justify; font: 14.0px 'Times New Roman'; color: #000000; -webkit-text-stroke: #000000}span.s1 {font-kerning: none} Sm
C.
p.p1 {margin: 0.0px 0.0px 0.0px 36.0px; text-align: justify; font: 14.0px 'Times New Roman'; color: #000000; -webkit-text-stroke: #000000}span.s1 {font-kerning: none} Eu
D.
p.p1 {margin: 0.0px 0.0px 0.0px 36.0px; text-align: justify; font: 14.0px 'Times New Roman'; color: #000000; -webkit-text-stroke: #000000}span.s1 {font-kerning: none} Gd