若有说明int a[3][4]; 则下面正确的数组元素引用是（ ）。B.C.

A. a[1][4]
B. a(2)(3)
C. a[1, 3]
D. a[1 + 1][1 + 2]

下面错误的语句是（ ）。

A. int a[2][3] = {1, 2, 3, 4, 5, 6};
B. int a[2][3] = {{1, 2, 3}, {4, 5, 6}};
C. int a[ ][ ] = {{1, 2, 3}, {4, 5, 6}};
D. int a[ ][3] = {{1, 2, 3}, {4, 5, 6}};

若有说明 int a[3][4] = {{1}, {2}, {3}}; 则a[1][1]的值是（ ）。A. 0 B. 1 C. 2 D. 3

A. 0
B. 1
C. 2
D. 3

以下程序的运行结果是 。#include void main( ){int a[10] = {1,2,3,4,5,6,7,8,9,10};int b[10] = {10,9,8,7,6,5,4,3,2,1};int i, j;for (i = 1,j = 9; i < 10 && j > 0; i += 2, j -= 3)printf(“a[%d]*b[%d] = %d\n”, i, j, a[i] * b[j]);}

以下程序的运行结果是 。#include void main( ){int a[3][4], i, j;for (i = 0; i<3; i++ )for (j = 0; j<4; j++ )a[i][j] = i + j;for (i = 0; i < 3; i++ ){for (j = 0; j<4; j++ )printf("a[%d][%d] = %d ", i, j, a[i][j]);printf("\n");}}

以下程序是求矩阵a，b的乘积，结果存入矩阵c中，并按矩阵形式输出。请填空。#include void main( ){ int a[3][2] = {1,2,3,4,5,6};int b[2][2] = {2,4,6,8};int i,j,k,s,c[3][2];for(i = 0;i<3;i++ )for(j = 0;j<2;j++ ){for( ; k<2; k++ )s += ;c[i][j] = s;}for(i = 0;i<3;i++ ){for(j = 0; j<2; j++ )printf(“%6d”, c[i][j]);;}}