47.有如下程序  #include  main()  {FILE *fp1;  fp1=fopen("f1.txt","w");  fprintf(fp1,"abc");  fclose(fp1);  }  若文本文件f1.txt中原有内容为：good，则运行以上程序后文件f1.txt中的内容为 
(A)goodabc
(B)abcd
(C)abc
(D)abcgood

43.有以下程序  main()  { unsigned int a;  int b=-1;  a=b;  printf("%u",A);  }  程序运行后的输出结果是  (A)-1 (B)65535 (C)32767 (D)-32768

44.有以下程序  void fun(int *a,int i,int j)  { int t;  if(i

45.有以下说明和定义语句  struct student  { int age; char num[8];};  struct student stu[3]={{20,"200401"},{21,"200402"},{10\9,"200403"}};  struct student *p=stu; 资料来源：东方教育网全国计算机等级考试频道 Http://www.eastedu.com.cn  以下选项中引用结构体变量成员的表达式错误的是  (A) (p++)->num (B)p->num (C)(*p).num (D)stu[3].age

46.有以下程序  mina()  { int x[]={1,3,5,7,2,4,6,0},i,j,k;  for(i=0;i=i;j--)  if(x[j+1]>x[j]){ k=x[j];x[j]=x[j+1];x[j+1]=k;}  for(i=0;i

48.48~50.以下程序的功能是：建立一个带有头结点的单向链表，并将存储在数组中的  字符依次转储到链表的各个结点中，请从与下划线处号码对应的一组选若中选择出  正确的选项。  #include  stuct node  { char data; struct node *next;};  (48) CreatList(char *s)  { struct node *h,*p,*q);  h=(struct node *) malloc(sizeof(struct node));  p=q=h;  while(*s!='\0')  { p=(struct node *) malloc(sizeof(struct node));  p->data= (49) ;  q->next=p;  q= (50) ;  s++;  }  p->next='\0';  return h;  }  main()  { char str[]="link list";  struct node *head;  head=CreatList(str);  ...  } (A)char * (B)struct node (C) struct node* (D) char

49.(A)*s (B)s (C)*s++ (D)(*s)++

50.(A)p->next (B)p (C)s (D)s->next

21. –Bruce, I really appreciate your handwriting. -- . (A) I practice every day (B) Thank you very much (C) No, I don’t think so (D) Well, it’s not good enough

22. --Why does the Lake smell terrible? --Because large quantities of water . (A) have polluted (B) is being polluted (C) has been polluted (D) have been polluted

23. --How amazing it is that astronauts are exploring outer space! --It’s a challenge, I guess, man against nature. (A) of (B) for (C) by (D) about