在100到500之间的整数中,包含数字2的数有多少个

for(var i=100;i

在回答前我确认下,这个是作为什么的论文?是什么英文作业之类的东西,不是学术论文吧?
In the modern society,qualities andstandards are changing rapidly.Qualities such as honesty are still valued bymost people,but this quality is decreasing due to various reasons.Trust canbe betrayed,promises can be untruthful.Honesty is a quality that is becomingless common,and it’s a quality that should not be forgotten,for it benefitsall,individuals as much as their surrounding communities.
In this modern world,fast paced lifestyleand the growing consumerism is causing a change in the society,a lot more ofour lives are starting to be associated with terms such as beneficial,efficiency,these are reasonable and constructive elements that would help thedevelopment of the world,but other important and valuable factors are beingignored.Honesty is among one of them.A lot of companies would make claims notentirely honest.
Even in everyday life,the commonpopulation would forget about honesty on an often basis.When a lot of peopleplaced honesty and benefit on the balance,honesty is often being ignored.Fromthe various texts and phone calls aiming to cheat money from people,to issuessuch as copy rights.It is evident that people don’t trust,they believe thatthey cannot simply trust one another.Rules and regulations are needed to stopsuch actions.Loop holes in these laws are being exploited while really,thereshouldn’t have to be a law to stop people stealing the works of others ifpeople can be trustworthy.
Since this quality is becoming rare in themodern society,it becomes highly regarded and valued.People or organizationswith a reputation of honesty are usually much more accepted and commonly respected.It is not only a value to those who keeps their honesty,as a standard of beinga person.By being honest,people can trust,and to live among a society,aperson needs to be trustworthy.Humans need live in a society,if there isn’thonesty,then without support,no group or individual can survive on their own.On the other hand,the more respected,trustworthy you are,the more thesociety around you will be willing to help you and trust you because you haveshown yourself to be reliable,hence relatively more likely to succeed throughthe help of others.It is a quality that makes one feel good about oneself,benefits the society around and obtains trust and support.
Honesty is being lost in our society,andit is a very valuable standard which is valued by most people.It is also veryimportant to have honesty to be trusted,because one can only hope to be helpedand supported if you can be trusted.It is a quality that would help othersaround those who have it,and in return,make everything easier for those whoare willing to keep it.For a person to be successful and accepted in thisworld,he must keep himself trustworthy,therefore honest.
这个是没什么论证也不是特别正式的,交英语作业还可以考虑下.学术论文就别乱来了,不过这么短我觉得应该不可能是吧.

import java.util.ArrayList;
public class TestA {
public static void main(String[] args) {
ArrayList al = new ArrayList();
int sum = 0;
for (int i = 100; i < 501; i++) {
if(i % 5 == 4 && i % 7 == 2) {
al.add(i);
}
}
for(int tmp:al) {
sum += tmp;
}
System.out.println(sum);
}
}

1.66个
（500-100）÷6≈66.7
2.17/18,13/14,11/12
3.设第2个数a2=x,则
a3=3+x
a4=x+3+x=2x+3
a5=3+x+x+3+x=3x+6
a6=2x+3+3x+6=5x+9
a7=3x+6+5x+9=8x+15
a8=5x+9+8x+15=13x+24
所以,13x+24=180,
x=12
即第二个数是12
4.因为两个连续整数的乘积的个位数只能是2、6、0,所以,它是149382

C.36
110是100-500间被11整除的最小数
(500-110)/11=35...5
加上110这个
所以35+1=36

（498-102）/3 +1=133.

AlBr3:263.2℃
AlCl3:182.7℃
HgCl2:302℃