对于罗斯福新政，中国政论界在不同时期，有不同的认识。阅读材料，回答问题。

材料  新中国成立后，罗斯福新政从中学历史教科书中消失……1982年，罗斯福新政首次作为一个约定俗成的历史概念被写入高中历史教科书。此后，罗斯福新政成为中学历史教科书重要的学习主题之一。

——据杨梅《“时空”坐标中的罗斯福新政》

阅读材料，新中国成立后罗斯福新政从中学历史教科书中消失，为什么？1982年以后罗斯福新政成为中学历史教科书重要学习主题的原因有哪些？

根据材料内容，选择最佳答案。

If you want to make friends, what should you do?

Steps:

★Try to look on the bright side of things.

★Look for groups in your area that do something you are interested in. Maybe you will learn some new skills and meet some people who have many things in common with you.

Tips(建议，诀窍):

★Contact your friends at least once a week by telephone or e-mail, or by visiting them to find out how they are. Remember important things about them such as birthdays and weddings(婚礼).

★If you have an argument with your friends, say sorry first.

★Remember never to leave old friends just because you have made some new ones.

★Listen to others carefully. It's better to be a good listener.

★Be different. Don't try to change others through your own ideas.

Warnings:

★Never ask or give away(泄密) a friend's secret.

★Don't be afraid to stand up for what is right.

★You'd better not give your ID number, phone number or your home address to people that you have just made friends with.

已知整数x满足不等式3x﹣4≤6x﹣2和不等式 $\frac{2x+1}{3}$ ﹣1＜ $\frac{x-1}{2}$ ．并且满足方程3（x+m）﹣5m+2=0，求m的值．

Ⅰ．方法一：