You're not a freshman, are you ______, I am a second-year student.

A:Yes, I'm not B:No, I am C:No, I'm not D:Yes, I am.

--You're not a freshman, are you
--______, I am a second-year student.

A:Yes, I'm not B:No, I am C:No, I'm not D:Yes, I am

—You’re not a freshman, are you —______, I am a second-year student.

A:Yes, I’m not B:No, I am C:No, I’m not D:Yes, I am

有以下程序
#include＜stdio.h＞
main（　）
(char a[3 0], b[30];
scanf("%s", a);
gets(b);
printf("%s/n%s/n", a, b);
程序运行时若输入：
how are you I am fine＜回车＞
则输出结果是______。

A:how are you B:I am fine C:how D:are you I am fine E:how are you I am fine F:how are you

有以下程序：
#include ＜stdio.h＞
main（　）
char a[30],b[30];
scanf("%s"，a);
gets(b);
printf("%s/n%s/n",a,b);

程序运行时若输入：
how are you I am fine＜回车＞
则输出结果是( )。

A:how are you B:I am fine C:how D:are you I am fine E:how are you F:I am fine G:how are you

若输入 "I am a boy!", 下列程序的运行结果为______。
char connect(string1,string2,string)
char string1[],string2[],string[];
int i,j;
for (i=0;stringl[i] !=’/0’;i++) string[i]=stringl[i];
for (j=0;string2[j] !=’/0’;j++) string[i+j]=string2[j];
string[i+j ] =’/0’;

main ( )
char s1 [100] , s2 [100] , s [100];
printf ("/n 输入 string1: /n");
scanf("%s",s1);
printf (" /n 输入 string2: /n" );
scanf ("%s", s2);
connect (s1, s2, s);
printf ("%s/n", s);

A:I am a boy! B:输入string2: C:I am D:I am a boy!

有以下程序
#include＜stdio.h＞
main（　）
(char a[3 0], b[30];
scanf("%s", a);
gets(b);
printf("%s/n%s/n", a, b);
程序运行时若输入：
how are you I am fine＜回车＞
则输出结果是（）。

A:how are you B:I am fine C:how D:are you I am fine E:how are you I am fine F:how are you