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问题 单项选择题

关于文化创新与社会实践的关系，正确的是（）

①文化创新可以推动社会实践的发展

②离开了社会实践，文化就会成为无源之水、无本之木

③文化创新能促进民族文化的繁荣

④社会实践是文化创新的动力，文化创新可以推动社会实践的发展

A.①②③

B.②③④

C.①③④

D.①②④

答案

参考答案：D

选择题

设NA代表阿伏加德罗常数的值，下列说法不正确的是( )。

A．阿伏加德罗常数NA是0.012kg12 C中所含的原子数

B．2g氢气所含氢原子数目为NA

C．标况下，22.4L NH3所含的分子数目为NA

D．1 L 1 mo1·L-1 NaCl溶液中所含有的Na+离子数目为NA
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听力题

根据短文内容及首字母提示，填写所缺单词，使短文意思完整。

Living in a city has (1) b      advantages and disadvantages. It is often (2) e     to find work in a city than in the countryside. There are always many choices of public transport. Besides, there are a lot of (3) I      things to do and places to see. You can eat in good (4) r     , visit museums, go to cinemas and go to parks when you (5) w       to relax. (6) H    , living in a city is often very (7) e      . You must find a well-paid job, otherwise you will not be able to (8) b       the things you want. What’s more, the city is always crowded, (9) n       and dirty. It is very difficult to find a good place where people can enjoy peace and (10) f       air as in the countryside.
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