Three basic structures of C language program are ( ).
A. Sequential structure, selection structure, loop structure
B. Recursive structure, selection structure, loop structure
C. Nested structure, recursive structure, sequential structure
D. Nested structure, selection structure, loop structure
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The default storage class for formal parameters is ( ).
A. auto
B. register
C. static
D. extern
Which one is illegal identifier? ( )
A. s_name
B. _e
C. printf
D. 3DS
"sizeof()" is ( )
A. a funtion call
B. an int expression
C. a illegal expression
D. a double expression
Which one of the following declarations of two-dimensional array "a" is incorrect? ( )
A. int a[2][2]={{1},{2}};
B. int a[][2]={1,2,3,4};
C. int a[2][2]={{1},2,3};
D. int a[2][]={{1,2},{3,4}};
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