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问题 计算题

在合成氨时，将100mol氮气和300mol氢气混合后通过合成塔中的催化剂，一定条件下达到平衡时，若测得混合气体中氨气的含量为25％。求平衡混合气体中N2的体积分数和H2的转化率各为多少？

答案

N2体积分数：18.75 ％；H2的转化率：40 ％

单项选择题

涓滴效应，是指在经济发展过程中并不给与贫困阶层、弱势群体或贫困地区特别的优待，而是由优先发展起来的群体或地区通过消费、就业等方面惠及贫困阶层或地区，带动其发展和富裕。
根据上述定义，下列属于涓滴效应的是( )。

A．国家加大对西部欠发达地区的财政投入
B．政府为应届毕业大学生创业提供便利条件
C．劳动部门为下岗职工举办免费技能培训班
D．五一假期城市近郊农家乐旅游逐年升温
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完形填空

第两节完型填空二 （共8小题，每小题1.5分，满分12分）

阅读下面短文，掌握其大意，然后在所空之处填写适当的单词，每空仅限填一词。。

Old English is very different __48__ the English we speak nowadays. In fact, it is certain that we would not be __49__ to understand it if we heard it today. __50__ the 10th century, Old English was the official language of England. The language __51__ of an Anglo-Saxon base plus words from the languages of Denmark and Norway. When we speak English today, we sometimes find __52__ hard to decide which words or phrases to use. This is __53__ many pairs of words and phrases have similar meanings in English, for __54__, pick up and lift up. These kinds of pairs developed because each word or phrase came from a __55__ language. Pick came from Anglo-Saxon, and lift from Norse.
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