题干

我国的领海主权不容侵犯,南海是我国的固有领海,蕴藏着丰富的海洋资源.
(1)南海不仅蕴含着大量的煤、石油、天然气等常规能源,还蕴藏着大量的可燃冰.可燃冰(主要成分是CH4)被科学家誉为“未来能源”,CH4燃烧的化学方程式____ 可燃冰作为能源与煤、石油相比的优点是____ 

(2)南海某岛采用风力发电提供的电能对海水进行了如图1所示的综合利用.
①反渗析法淡化海水是利用海水中各成分的 ____ 不同分离出淡水.
②将高盐度浓缩海水进行____可以分离得到粗盐.
③用苦卤制取金属镁的流程图如图2:
上述转化过程中,所发生的反应属于复分解反应类型的步骤是____(填序号),步骤Ⅱ的化学方程式为____.利用苦卤制取氢氧化镁比“直接向海水中加入石灰乳制取氢氧化镁”的优势是____

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CH4+2O2CO2+2H2O,\u71c3\u70e7\u540e\u51e0\u4e4e\u4e0d\u4ea7\u751f\u4efb\u4f55\u6b8b\u6e2

同类题5

       The Oxford English Dictionary (OED, 牛津英语词典) is thinking of adding the Chinese word tuhao (土豪) to its 2014 edition (版本).
The word has become popular in China during the past few months to describe newly rich people who spend money in extravagant(铺张的,浪费的)ways. Tuhao has caught on in Western countries, too, to describe similar people in their countries.
       The adoption (采用) of the word by foreign countries is an example of China's spreading influence in the world not just economically, but also socially and culturally. People are paying attention to what is happening in China and are picking up some Chinese words in the process, especially those words that express unique (独特的) Chinese ideas that cannot be easily translated (翻译) into English.
       The OED is also thinking of adding hukou (户口) and dama (大妈) to the already 120 Chinese words in its dictionary. Hukou refers to (指的是) China's system of residency permits (户籍系统) and dama refers to middle-aged Chinese women whose gold buying habits influence the global gold markets. The news that the OED was adding these words has met with some criticism (批评). Some people say the words embarrass (使人尴尬) China, but others insist that in a globalized (全球化的) society it’s natural for words to spread and be adopted elsewhere. In fact, a word like tuhao expresses the humor of China. It's easy to pronounce (发音) and very accurate (精准的) at poking fun at (嘲弄) rich people who have more money than taste.