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问题 选择题

各图中“○”和“●”分别表示两种质子数不同的原子，其中能表示由两种单质组成的混合物的图是

答案

答案：A

题目分析：混合物是由不同种物质组成的，而纯净物是由一种物质组成的。换句话说由不同种分子构成的物质为混合物，由同种分子构成的物质为纯净物；单质是由一种元素组成的纯净物；化合物则是由不同种元素组成的纯净物。图中A所示的是两种单质组成的混合物。

点评：混合物是由不同种物质组成的，而纯净物是由一种物质组成的。单质是由一种元素组成的纯净物；化合物则是由不同种元素组成的纯净物。

单项选择题

产生（）破坏前，在基础周围地面有明显隆起现象。

A.冲切剪切

B.局部剪切

C.整体剪切

D.徐变沉降
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填空题

It is clear that we are rapidly becoming a global culture. New forms of information technology, intercontinental travel, and the complex nature of economics are all elements in such a change. Japan, an ancient (1) culture, now dominates the West economically while its own traditional (2) is rapidly becoming (3) in the process.
It does not take a great deal of analysis to see the vast interchanges of cultural influences in the world today. The thirst for (4) fashions, popular music, and the other elements of consumer culture (5) great inroads in non-Western lands while the West seeks out everything from the religious traditions of the Ease (6) the art and music these countries produce. In the field of (7) , to cite one conspicuous example, contemporary readers seek books (8) those of the West. Latin American authors, as well as those from Africa, Asia, and India, now find appreciative audiences.
A (9) culture does not mean a unitary or "one world" culture. It does mean that people are increasingly aware of the diversity of culture. World events enter our living rooms so that things that may once have been (10) of as distant (11) now greet us immediately and in color. We may watch those events on a television made in Japan while wearing clothes sewn in Thailand and shoes made in Hungary while snacking (12) food grown in Mexico. Such an economic interdependence reflects the reality of a global banking system, the globalization of the economy, and the increasing (13) of information and information technologies.
(14) has this shrinking of distances (and attitudes) become more clear than in the academic debates over what constitutes a liberal (15) education today. Is it possible (or desirable) to have the Western core of humanities (16) the center-piece of a curriculum The place of non-Western and non-traditional cultures as part of the general (17) of a student is hotly argued in educational circles. The very fact of that discussion (18) to the emergence of a global consciousness with a continued shrinking of parochial attitudes. The (19) that such globalization is hotly debated only emphasizes the profound nature of the (20) taking place in our culture.
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