A. (0,1,1,2,3,4,2,3,4) B. (0,1,0,1,0,2,1,0,1) C. (0,1,0,1,0,0,0,1,1) D. (0,1,0,1,0,1,0,1,1)
A. 少于一个字母的序列 B. 任意个字母的序列 C. 不少于一个字符的序列 D. 有限个字符的序列
A. (0,1,0,0,4,1,0,1) B. (0,1,0,1,0,2,1,0,1) C. (0,1,0,1,0,0,0,1,1) D. (0,1,0,1,0,1,0,1,1)