The survey among 25-65 year olds focused on________.

In most areas, free public school education begins with kindergarten classes for 2-year-olds.

In this country,____ well cared and the young are well educated. A: the old is B: olds are C: old is D: the old are

During a 3-year period, the profits of Company X changed by what percent from the second year to the third year ？（） (1)The increase in profits of Company X from the first year to the second year was the same as the increase from the first year to the third year. (2)For Company X, the profits for the first year were $13,800 and the profits for the third year were $15,900. A: 条件(1)充分，但条件(2)不充分． B: 条件(2)充分，但条件(1)不充分． C: 条件(1)和(2)单独都不充分，但条件(1)和条件(2)联合起来充分． D: 条件(1)充分，条件(2)也充分． E: 条件(1)和条件(2)单独都不充分，条件(1)和条件(2)联合起来也不充分．

Your management is evaluating a project which requires an investment of $500,000. The expected inflow is $100,000 for 1st year, and $300,000 for every year after that. What is the payback period A: 2 year B: 2 years and 4 month C: 3 year D: Cannot be determined because discount rate is not specifie

What is the payback if the initial investment is $60,000 and the cash flows are? ( )Year 1$20,000Year 2$25,000Year 3$30,000Year 4$10,000Year 5$5,000 A: 1.75 years B: 2.25 years C: 2.50 years D: 2.45 years

已知判断某年year是闰年的条件是满足下列二者之一（1）能被4整除，但不能被100整除（2）能被400整除下面哪个逻辑表达式可作为year是闰年的判断条件？ A: ((year%4==0) || (year%100!=0)) && (year%400==0) B: ((year%4=0) || (year%100!=0)) && (year%400=0) C: ((year%4==0) && (year%100!=0)) || (year%400==0) D: ((year%4=0) && (year%100!=0)) || (year%400=0)

How often were meetings held on the subject of the ICC（） A: the second and third month of each year B: 2 to 3 times every year C: 2 to 3 times a month D: every 2 or 3 years

下列选项中属于顺序控制指令的是： A: LSCR B: SCRT C: SCRE D: OLDS

程序填空题：将程序中【1】,【2】位置处所需代码对应填到程序后第1空，第2空处，实现程序功能。程序功能：从键盘输入一个年份，判断是否为闰年。#include <stdio.h>int main(){ int year; scanf("%d",【1】); if(year%400==0||year%4==0 【2】 year%100!=0) printf("%d年是闰年！\n",year); else printf("%d年不是闰年！\n",year); return 0;}