A.GB2312到UTF-8 B.GBK到UTF-8 C.BIG5到UTF-8 D.UNICODE到UTF-8
A.SS B.DwPTS C.GP D.UpPTS
A.調(diào)度精度越高 B.系統(tǒng)頻譜效率越高 C.調(diào)度精度越低 D.系統(tǒng)頻譜效率越低