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问题 解答题

一个圆柱由两个平面和一个曲面组成，它们相交成两个圆．若圆的半径为3cm，你能求出这两个平面和这个曲面相交成的线的总长度吗？（结果保留π）

答案

这两个平面和这个曲面相交成的线的总长度为：

2π×3×2=12π（cm）．

故这两个平面和这个曲面相交成的线的总长度为12πcm．

单项选择题

近年来《钢的琴》《神探亨特张》等影片都讲述普通人的现实生活，影片都具有较高的艺术水准，并在国际上屡屡获奖，但在国内票房成绩欠佳。艺术电影代表创作者对世界、社会和人生的思考，对艺术创新的追求，其特点为先锋、超前、具有个人风格。但这些特点与普通观众的观影经验、审美心理产生冲突，增加了观众接受难度。所以，艺术电影观众群体的形成不可能一蹴而就。这段文字主要讲述的是（）。

A.艺术电影的审美特点

B.艺术电影难被接受的原因

C.艺术电影取得的成绩

D.艺术电影的生存状况
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单项选择题

A narrowing of your work interests is implied in almost any transition from a study environment to managerial or professional work. In the humanities and social sciences you will at best reuse only a fraction of the material (1) in three or four years’ study. In most career paths academic knowledge only (2) a background to much more applied decision-making. Even with a " training " form of degree, (3) a few of the procedures or methods (4) in your studies are likely to be continuously relevant in your work. Partly this (5) the greater specialization of most work tasks compared (6) studying. Many graduates are not (7) with the variety involved in (8) from degree study in at least four or five subjects a year to very standardized job (9) . Academic work values (10) inventiveness, originality, and the cultivation of self-realization and self-development. Emphasis is placed (11) generating new ideas and knowledge, assembling (12) information to make a " rational " decision, appreciating basic (13) and theories, and getting involved in fundamental controversies and debates. The humanistic values of higher (14) encourages the feeling of being (15) in a process with a self-developmental rhythm. (16) , even if your employers pursue enlightened personnel development (17) and invest heavily in " human capital " —for example, by rotating graduate trainees to (18) their work experiences—you are still likely to notice and feel (19) about some major restrictions of your (20) and activities compared with a study environment.

（4）（）

A.practiced

B.described

C.encountered

D.analyzed
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