The following words have inflectional affixes EXCEPT().

The following words have inflectional affixes EXCEPT().
A、happier
B、worker
C、harder
D、taller
【正确答案】:B
【题目解析】:曲折词根的辨析 worker一词中的-er其功能是将work转化为另一种名词含义,而非形容词比较级一样起语法作用,因而选B。