在考研英语中，如果没听懂问题，可以尝试以下几种表达方式：
直接请求重复
I'm sorry, I didn't catch that. Could you please repeat the question？
Excuse me, I didn't quite follow you. Would you please say it again？
I'm really sorry, I didn't hear/catch that. Could you please speak more slowly？
表达没听清
Sorry, but I missed that.
I'm afraid I didn't quite catch what you were saying.
I didn't quite hear what you said.
询问具体问题
Could you please clarify what you mean by that？
I want to make sure I understand you correctly. Could you elaborate a bit more？
表现自信
I am sorry, could you please repeat the question？ I want to make sure I understand it correctly.
Sorry, I didn't get any of that. Could you please clarify？
礼貌地询问是否可以换题
I apologize for any confusion. I might be a bit nervous. Could we possibly go over another question？
这些表达方式既礼貌又有效，能够帮助你在考研英语中应对没听懂问题的情况。建议你在实际面试中根据具体情况选择合适的表达方式，以展示自己的英语水平和沟通能力。