According to the study, organic food is______than conventionally produced food.A.much heal
According to the study, organic food is______than conventionally produced food.
A.much healthier
B.better
C.no healthier
D.less healthier
According to the study, organic food is______than conventionally produced food.
A.much healthier
B.better
C.no healthier
D.less healthier
对下列结构体变量stu的成员引用不正确的是()
struct student
{int m;float n;}stu,*p;
A.p.stu.n
B.P->m
C.(*p).m
D.stu.n
A.:1,$s/stu/Student/gc
B.:1,$s/stu/Student
C.:1,Ns/stu/Student
D.:0,$s/stu/Student/g
输入两个整数,调用函数stu()求两个数的立方和,返回主函数显示结果。
int stu(int a,int b)
{return a*a+b*b;}
main()
{int x,y;
scanf("%d,%d",&x,&y);
printf("%d",stu(x,y));
}
错误:______
改正:______
参考答案:错误
有以下程序: struct STU {char rlLlm[10]; float scoEe[3];} main() {struer STU s[3]={{“20021”,90,95,85), {“2 0022”,95,80,75}, {“20023”,100,95,90}},*P=s; int i;float sum=0; for(i=0;i<3;i++) Sum=Sum+p一>score[i]; printf(“%6.2f\n”,sum); ) 程序运行后的输出结果是()。
对下面说明叙述正确的是()
typedef struct stu
{int n;char ch[8];
}student;
A.student是结构体类型名
B.student是结构体变量
C.typedef struct是结构体类型
D.struct是结构体类型名
"I'm very tired.""We really should stop ______ and go to bed."
A.to study
B.studying
C.of studying
D.from studying
What does the author mean by "paralysis by analysis"(Last line, paragraph 4)?
A.Endless studies kill action.
B.Careful investigation reveals truth.
C.Prudent planning hinders progress.
D.Extensive research helps decision-making.
有如下两个关系模式:student(学号,姓名,奖学金)score(学号,课程号,成绩),则()是score相对与student关系的外键。
A学号
B学号,课程号
C课程号
D成绩