单选题 ______ refers to an abnormal type of word-formation where a shorter word is formed by deleting an imagined affix from a longer form already in the language.
【正确答案】 D
【答案解析】解析：考查逆构词法。逆构词法是一种不规则的类型，即把一个语言中已经存在的较长的单词删去想象中的词缀，由此造出一个较短的单阋。