题目内容：
Although falling coffee prices are bad for economy, they improve health, because people have time tolook after children during that period．
参考答案：
答案解析：
单选题：Although falling coffee prices are bad for economy, they imp
- 题目分类：英语四级
- 题目类型：单选题
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Although falling coffee prices are bad for economy, they improve health, because people have time tolook after children during that period．