For most people, the word “fashion” means “clothes”. But people may ask the question, “What clothes are in fashion?” And they use the adjective “fashionable” in the same way: 
    “She was wearing a fashionable coat. His shirt was really a fashionable color.”
But of course there are fashions in many things, not only in clothes. There are fashions in holidays, in restaurants, in films and books. There are even fashions in school subjects, jobs…and in languages.
    Fashions change as time goes. If you look at pictures of people or things from the past, you will see that fashions have always changed. An English house of 1750 was different from one of 1650. A fashionable man in 1780 looked very different from his grandson in 1860.
    Today fashions change very quickly. Some of this is natural. We hear about things much more quickly than in the past. Newspaper, radios, telephones and television send information from one country to another in a few hours. New fashions mean that people will buy new things, so you see there is money in fashion.

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恩格斯说：“梭伦揭开了一系列所谓政治革命”，“随着有产阶级日益获得势力，旧的血缘亲属团体也就日益遭到排斥；氏族制度遭到了新的失败”。恩格斯在这里高度肯定的是梭伦改革

以双曲线$\frac{x^2}{a^2}-\frac{y^2}{b^2}=1$（a＞0，b＞0）中心O（坐标原点）为圆心，焦矩为直径的圆与双曲线交于M点（第一象限），F₁、F₂分别为双曲线的左、右焦点，过点M作x轴垂线，垂足恰为OF₂的中点，则双曲线的离心率为（　　）

安倍政府默许将希特勒的《我的奋斗》部分内容作为日本学校教材使用，引发了巨大的争议和质疑。有日本网友批评说，政府真的在发疯，希特勒是人类的敌人。日本网友认为希特勒是人类敌人的原因之一是他领导下的德国发动了（  ）