战后美国新经济时代的主要特征是信息化和全球化。

阅读下列图片，回答问题。

材料一

材料二

甲醇（CH₄O）燃料是一种可再生新型燃料，甲醇中碳元素的化合价为____；8g甲醇完全燃烧需要氧气的质量为____．常见气体X可通过反应X+3H₂═CH₄O+H₂O合成甲醇，X的化学式是____．

2008年两会期间,中央政府作出决定:具有公益性的博物馆、纪念馆和全国爱国主义教育示范基地,今明两年内逐步向社会免费开放。这项举措有利于（  ）

①弘扬中华民族精神　②加强社会主义思想道德建设　③中国文化引领世界文化潮流　④满足人民群众物质文化生活的需要

       Do you still get free plastic bags from the supermarkets? Things have changed.
       China has banned（禁止）free plastic bags in  shops and supermarkets，and people have to pay for using plastic bags. The rule started on June 1st. It came because our country tried to make less litter. Making super-thin plastic bags has also been banned.
       The Chinese once used about 3,000,000,000 plastic shopping bags a day，and they have caused pollution of the environment. The bags have become a main cause of plastic pollution because they are easy to break and people throw them away here and there. So the Chinese people are encouraged to bring their own bags for shop ping.
       What kind of shopping bag is the best to bring? Some students in Chongqing have a good idea. They make their own shopping bags. They use old clothes to make cloth bags，and send them to their parents as presents. They also ask their parents and friends to use cloth bags instead of plastic ones. They think it is their duty to protect the environment.
根据短文内容，选择最佳答案。