单项选择题
A) 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, B) 2, 1, 4, 3, 6, 5, 8, 7, 0, 9, C) 0, 9, 8, 7, 6, 5, 4, 3, 2, 1, D) 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
A) pk=k; B) pk[0]=&k[1][2]; C) pk=k[0]; D) pk[1]=k;