在int a[ ][3] = { {1,4}, {3,2}, {4,5,6}, {0} };中,a[2][1]的值是( )。
A. 5
B. 0
C. 6
D. 2
下列字符串赋值语句中,不能正确把字符串"Hello World"赋给数组的语句是()
A. char a1[]={'H','e ','l','l','o',' ','W','o','r','l','d','\0'};
B. char a2[15]; strcpy(a2,"Hello World");
C. char a3[15]; a3="Hello World";
D. char a4[15]={"Hello World"};