The morpheme of the past tense marker -ed is pronounced as /t/ in worked, and /d/ in tried. This example shows ( ).
A、morphemes are abstract units
B、morphs are actual spoken, minimal carriers of meaning
C、allomorphs are phonetically conditioned and thus predictable
D、affixes are added to other morphemes to create new words
【正确答案】：C
【题目解析】：本题考查词素变体。-ed 在单词worked 中发音为/t/，在tried中发音为/d/。这个例子说明语素变体在语音上是有条件的，因此是可预测的。allomorphs语素变体； phonetically语音上地；conditioned有条件的，受制约的。故选C。A——语素是抽象单位；B——变形词是实际的口语，最小的意义载体；D——词缀被添加到其他语素中以创造新词。均不符合题意。
