以下变量定义，错误的是： A: struct student{int num, char name[20];} s; B: struct {int num, char name[20];} s; C: struct student{int num, char name[20];}; struct student s; D: struct student{int num, char name[20];} ; student s

以下对结构类型变量的定义中不正确的是（  ） 未知类型：{'options': ['#define STUDENT struct studentSTUDENT{int num;float age;}std1;', 'struct student{int num;float age;}std1;', 'struct student{int num;float age;float age;}std1;', 'struct student{int num;}student;struct student'], 'type': 102}

以下对结构体类型变量的定义中不正确的是（ ）。 A: struct{ int num; float age; }student; struct student std1; B: define STUDENT struct student STUDENT{ int num; float age; }std1; C: int num; float age; }std1; D: struct{ int num; float age; }std1;

下列选项中不能够定义一个结构体类型变量stu的是 。 A: struct student { int num; int age; } stu; B: struct student { int num; int age; }; student stu; C: struct {int num; int age; } stu; D: struct student {int num; int age; }; struct student stu;

以下结构体类型变量的定义中不正确的是（ ）。 A: B: define STUDENT struct student STUDENT{ int num; float age; }std1; C: struct student { int num; float age; } std1; D: struct { int num; float age; }std1; E: struct{ int num; float age; } ; struct student std1;

以下对结构类型变量的定义中错误的是（ ） A: B: define STUDENT struct student STUDENT {int num;float age;} std1; C: struct {int num; float age; } std1; struct student std1; D: struct student {int num; float age; } std1; E: struct {int num; float age; } std1;

若有以下定义和语句：struct student { int age,num ; }; struct student stu[3]={{1001,20},{1002,19},{1003,21}}; int main() { struct student *p=stu; … }则以下正确的引用是（）。 A: (p++)->num B: ++p->num C: (*p).num D: p->num

以下结构体的定义语句中，正确的是______。? struct student {int num; char name[10];int age;}stu;|struct {int num; char name[10];int age;}student; struct student stu;|struct student {int num; char name[10]; int age;}; student stu;|struct student {int num; char name[10];int age;};stu;

以下各项用于定义结构体类型，并定义结构体变量，其中正确的是________。 A: struct student { char num[5]; int score; }; student stu1,stu2; B: struct student{ char num[5]; int score;};struct student stu1 stu2; C: struct student { char num[5]; int score=96; }; struct student stu1,stu2; D: struct student{ char num[5]; int score;};struct student stu1,stu2;

对结构体类型变量定义不正确的是（ ）。 A: B: define STUDENT struct studentSTUDENT{char name;int num;}std; C: struct student{char name;int num;}stu; D: E: define struct student{char name;int num;}STD;STD stu; F: struct{char name;int num;}student;struct student stu;