题目内容

A C language program consists of one or more source program files.

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C language is made up of ( ).

A. main program and subprogram
B. main function and some subfunctions
C. One main function and one other function
D. main function and subprogram

There is the following function call statement: func(rec1,rec2+rec3,(rec4,rec5)); The number of actual parameters in the function call statement is ( )

A. 3
B. 4
C. 5
D. There are grammatical mistakes

malloc allocates a continuous space of size bytes in the dynamic memory area.

Functions such as calloc and free are declared in the stdio. h header file