人体细胞中含量最多的元素是请选择DCBA6l*R:j:U1n)G3O9k2V1a,R,k+q/U:{)h3D2H
A．氧3O9k2V1a,R,k+q/U:{)h3D2H
B．碳3O9k2V1a,R,k+q/U:{)h3D2H
C．氮3O9k2V1a,R,k+q/U:{)h3D2H
D．钙3O9k2V1a,R,k+q/U:{)h3D2H