[单选题]
13.27: Light of wavelength 61ffu*ntu8bfg r j*ocx1dtgz7z7 (*+l1lz k ,s 00nm is transmitted from air into a piece 6xx r:;bcn1 0 i 2nv3fi*sa(mnptxq,e of glass. Which one of the label,*apm v xxi(qn;nbi0cnf3te s :6xr2 1ed arrows best indicates the path of the light ray after it enters the glass?