①社会文明进步

②经济繁荣昌盛

③生命受到尊重

④行人不受约束

如图为一个通电螺线管糊静止的小磁针示意图，图中a、b为螺线管的两磁极，c、d为小磁针的两磁极，下列说法正确的是（   ）

   There are many rules (制度) in the old libraries. For example, no photos, no drinking and no phones. But now a lot of libraries don't have too many rules. They paint the rooms beautiful colors so readers would like to read there. There aren't hard chairs in these libraries.
There are nice sofas in them. Some of them are open 24 hours every day. In the libraries in America,readers can make a 1free call. That means that they don't need to pay any money for making a call. In the kid's library in Denmark, children can sleep there if it is too late. In some libraries in Australia, they have a kids'"story time". 2今天图书馆是孩子们娱乐和学习知识的好去处。

有同学知道长时间手机上网对学习影响很大，但总不能自制。对此，你的建议是（  ）
①以坚强意志抵制不良诱惑
②培养学习兴趣，避开诱因
③联想长时间上网的危害
④请老师或同学帮忙监督