题目内容

If there are defined statements: int m[]={5,4,3,2,1},i=4;, the wrong reference to the element of array m is ( )

A. m[--i]
B. m[2*2]
C. m[m[0]]
D. m[m[i]]

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The input function that should be used when the user asks for a space in the input string is ( )

A. scanf()
B. getchar()
C. gets()
D. getc()

There is the following function definition: void fun(int n, double x){ …… } If the variables in the following options are defined and assigned correctly, the correct call statement to function fun is ( )

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If there is the following definition: int x[10],*pt=x; The correct reference to an element of array x is ( )

A. *&x[10]
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void fun (char a,char b) {a=b; (a)++; } main() { char c1='A', c2='a', p1, *p2; p1=&c1; p2=&c2; fun (p1,p2); printf("%c%c\n", c1,c2); } The output of the program is ( ).

Ab
B. aa
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D. Bb