Ambiguity often arises due to（）, as is shown in the sentence “He is a hard businessman”, in which “hard” can mean both “hardworking” and “difficult”.
A、polysemy
B、homonymy
C、synonymy
D、antonymy
【正确答案】：A
【题目解析】：本题考查造成歧义的原因。
多义关系（polysemy）出现在不完整的语境中，会造成歧义。比如：he is a hard businessman. hard可以翻译成“勤劳的”，也可以翻译成“难对付的”。所以本题选A。
