题目内容：
( )混合经济 ( )政治经济学 参考答案：【答案仅供学习，请勿对照自行用药等】
答案解析：
填空题：( )混合经济 ( )政治经济学
- 题目分类：英语三级A级
- 题目类型：填空题
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Man is______________ ,49 of the environment.
Man is______________ ,49 of the environment.
47______________is the sctence of how living creatures and
47______________is the sctence of how living creatures and plants exist togethe
It is the feathers that (able) ______________a bird to fly.
It is the feathers that (able) ______________a bird to fly.
Paragraph 2----------------
Paragraph 2----------------
Sleep helps brain to________.
Sleep helps brain to________.