题目

Because of the support from all over the country, beautiful new buildings        here and there in the earthquake-hit areas in Sichuan.A.can seeB.can be seenC.can't be seen 答案：【答案】B【解析】句意：因为来自全国各地的支持，美丽的新建筑在四川受地震袭击的地区到处都可以被看到。can see可以看到；can be seen可以被看到；can't be seen不能被看到。根据句意可知，主语beautiful new buildings和动词see构成被动关系，句中应使用被动语态，并且根据句中Because of the support from all over th 仿照下列化学方程式，写出(1)～(4)的化学方程式． CH4＋2O2CO2＋2H2O CaO＋H2OCa(OH)2 2Na＋Cl22NaCl Cl2＋2NaOHNaCl＋NaClO＋H2O (1)氧化钠溶于水生成氢氧化钠：________． (2)制取漂白粉[主要成分为Ca(ClO)2]：________． (3)铜在氯气中燃烧：________． (4)丁烷(C4H10)完全燃烧：________．