A、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 14px">int x[][3]={0}; </span>
B、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 14px; TEXT-DECORATION: none">int x[2][3]={{1,2},{3,4},{5,6}};</span>
C、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 14px">int x[][3]={{1,2,3},{4,5,6}};</span>
D、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 14px">int x[2][3]={1,2,3,4,5,6};</span>