______ modify the meaning of the original word and in many cases change its part of speech. ()
A、Inflectional affixes
B、Derivational affixes
C、Prefixes
D、Suffixes
【正确答案】：D
【题目解析】：(P53):后缀附加在词根的末尾,它们改变了原有单词的词义,而且在很多情况下也会使原有单词的词类或词性发生变化。这样就有了构成名词的后缀、构成形容词的后缀、构成副词的后缀和构成动词的后缀。
