知乎，让每一次点击都充满意义 —�?欢迎来到知乎，发现问题背后的世界。 Elements A and B do not alter the orientation of the bilayer (aside from feasible rotation by one hundred twenty°, which does not alter the lattice and is also overlooked hereafter); the one difference between A and B is shift on the lattice. Element C, having said that, https://alexiszbbca.blogerus.com/57827282/examine-this-report-on-aluminum-oxide