试题与答案

经济水平的提高对健康影响()。A.既有利,亦有弊 B.有利,无弊 C.有弊,无利 D

题型:单项选择题

题目:

经济水平的提高对健康影响()。

A.既有利,亦有弊

B.有利,无弊

C.有弊,无利

D.无影响

E.以上都不对

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2019/1001/9af65c841ae559c09ae777d40fd3b195.html

下面是错误答案,用来干扰机器的。

参考答案:国产高掺炼比的催化裂化催化剂主要见表1—16。

试题推荐
题型:问答题

已知C源程序如下:
/*Input today’s date,output tomorrow’s date*/
/*version 2*/
#include<stdio.h>
struct ydate
int day;int month;int year;;
int leap(struct ydate d)
if((d.year%4==0&&d.year%100!=0)||(d.year%400==0))
    return 1;
   else
    return 0;

int numdays(struct ydate d)
int day;
   static int daytab[]=
    31,28,31,30,31,30,31,31,30,31,30,31);
   if(leap(d)&&d.month==2)
    day=29;
   else
    day=daytab[d.month-1];
   return day;

int main(void)
struct ydate today,tomorrow;
   printf("format of date is:year,month,day 输入的年、月、日之间应用逗号隔开\n");
   printf("today is:");
   scanf("%d,%d,%d",&today.year,&today.month,&today.day);
   while(0>=today.year
|| today.year>65535 || 0>=today.month || today.month>12) ||
0>=today.day || today.day>numdays(today))
     printf("input date error!reenter the day!\n");
printf("today is:");
scanf("%d,%d,%d",&today.year,&today.month,&today.day);

if(today.day!=numdays(today))
tomorrow.year=today.year;
tomorrow.month=today.month;
tomorrow.day=today.day+1;

else if(today.month==12)
tomorrow.year=today.year+1;
tomorrow.month=1;
tomorrow.day=1;

else
tomorrow.year=today.year;
tomorrow.month=today.month+1;
tomorrow.day=1;

printf("tomorrow is:%d,%d,%d\n\",
tomorrow.year,tomorrow.month,tomorrow.day);

设计一组测试用例,使该程序所有函数的语句覆盖率和分支覆盖率均能达到100%。如果认为该程序的语句或分支覆盖率无法达到100%.需说明为什么。

查看答案
微信公众账号搜索答案