完成下列反应的化学方程式．

（1）铁丝在氧气中燃烧____ ．

（2）用稀硫酸除去铜粉中少量的氧化铜粉末____ 　．

（3）钠与水反应生成了一种碱和一种可燃性的气体____ 　．

（4）以上三个反应涉及____ 种基本反应类型．

我党在探索建设社会主义道路过程中的严重失误是什么？

    The Yellow Mountain is one of the most famous m____  in China. Every year l____  of Chinese people and foreigners visit it. It is not f____  from here. You can s____ about two hours getting there by bus. You can also go there by train o____  by plane. When you are c____ the mountains, you can e____  the sea of clouds, wonderful trees and rocks (岩石) a____ you. In the e____ morning when the sun rises (升起)，the sun looks b____ . It is really a good place to go.