Because of the global economy, M&A is quite common, thus when it happens, people lose jobs and the economy will be largely damaged. ( )

A．角动量的空间量子化的个数为角动量量子数乘以2再加上1
B． 角动量空间量子化的图中，半圆形的半径为角动量空间投影的最大值
C．磁矩与磁场的夹角可以任意
D．角动量的空间投影只能为奇数个