A.1.51eV B.1.89eV C.2.16eV D.2.40eV
A.任意值 B.nh,n=1,2,3,… C.2πnh,n=1,2,3,… D.nh/(2π),n=1,2,3,…
A.20/27 B.9/8 C.27/20 D.16/9