题目内容：
The old lady has developed a __________ cough which cannot be cured completely in a short time.
A．perpetual B．permanent C．chronic D．sustained
参考答案：【答案仅供学习，请勿对照自行用药等】
答案解析：
选择题：The old lady has developed a __________ cough which cannot be cured completel...
- 题目分类： 英语学科知识与教学能力
- 题目类型：选择题
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