struct Date
{
int month;?
int day;
int year;
};
struct Student
{
int num;?
char name[20];
char sex;
int age;
struct Date birthday;
float score;
}stu;
sizeof(stu)的值是()
A.45
B.48
C.37
D.40
A.2的n次方
B.2的n次方-1
C.2的n次方+1
D.2*n-1