Complete the following statements with proper words or expressions according to the course book.Almost all affixes are ( )morphemes because few can be used as independent words.
【正确答案】：BOUND
【题目解析】：本题考查词缀的特征。几乎所有的词缀都是粘附词素，因为它们很少能独立成词。bound morphemes：粘附词素。
