题目内容：
These __________ over details are an indication of more serious battles to come, between those who want a strong centre at the heart of the Union and those who want to __________ the power ceded by national governments.
参考答案：
答案解析：
单选题：These __________ over details are an indication of more seri
- 题目分类：GRE
- 题目类型：单选题
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