题干

如图所示,一定质量的理想气体由a状态变化到b状态,则此过程中(   )

A:气体的温度升高

B:气体对外放热

C:外界对气体做功

D:气体分子间平均距离变小

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答案(点此获取答案解析)

A

同类题1

2015年是中国取得抗日战争胜利70周年。阅读材料,回答问题。

材料一 中国抗日战争大事记

1931年9月18日,日本在沈阳制造“九一八事变”,强占我国东北。

1935年10月12日,日本制造华北事变。大批日本关东军入关,威逼平津。

1937年7月7日,日军制造“卢沟桥事变”,开始全面侵华。

1937年8~11月,国民政府在正面战场组织淞沪会战、太原会战、徐州会战、武汉会战等多次重大战役,牵制了日军主力。

1937年12月13日,日军攻下当时中国的首都南京,进行惨绝人寰的大屠杀。

1942年初,中国政府派遣远征军到缅甸,同日军作战。中国远征军救出被围英军七千多人。

1945年5月8日,二战中欧洲战场结束。

1945年初,在英美军队配合下,中国远征军击败侵缅日军。

1945年8月15日,日本天皇发表投降诏书,中国取得抗日战争胜利,第二次世界大战结束。

材料二 1943年12月1日,《开罗宣言》在重庆、华盛顿、伦敦三地同时发表。这样,《开罗宣言》在反法西斯战争的历史背景下,以中、美、英三国首脑会谈精神为基础,由美方代表草拟,经中、美、英三方代表认真讨论,三国首脑同意,并征得斯大林的完全肯定,实际上以国际协定的形式公布于世……

《开罗宣言》庄严宣告,“三国之宗旨,在剥夺日本自1914年第一次世界大战开始以后,在太平洋上所夺得或占领之一切岛屿,在使日本所窃取中国之领土……归还中华民国”。

——摘编自新华网

同类题4

The values of artistic works, according to cultural relativism(相对主义), are simply reflections of local social and economic conditions. Such a view, however, fails to explain the ability of some works of art to excite the human mind across cultures and through centuries.

              History has witnessed the endless productions of Shakespearean plays in every major language of the world. It is never rare to find that Mozart packs Japanese concert halls, as Japanese painter Hiroshige does Paris galleries, Unique works of this kind are different from today’s popular art, even if they began as works of popular art. They have set themselves apart in their timeless appeal and will probably be enjoyed for centuries into the future.

               In a 1757 essay, the philosopher David Hume argued that because“the general principles of taste are uniform(不变的) in human nature,”the value of some works of art might be essentially permanent. He observed that Homer was still admired after two thousand years. Works of this type, he believed, spoke to deep and unvarying features of human nature and could continue to exist over centuries.

               Now researchers are applying scientific methods to the study of the universality of art. For example, evolutionary psychology is being used by literary scholars to explain the long-lasting themes and plot devices in fiction. The structures of musical pieces are now open to experimental analysis as never before. Research findings seem to indicate that the creation by a great artist is as permanent an achievement as the discovery by a great scientist.