摘要
<正> In this note,we would like to point out that(i)of Corollary 1 given by Zhang et al.(cf.Commun.Theor.Phys.39(2003)381)is incorrect in general.
In this note, we would like to point out that (i) of Corollary 1 given by Zhang et al. (cf Commun. Theor. Phys. 39 (2003) 381) is incorrect in general.