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题目内容
Each of the country's 26 sates and most of its more than 2,000 municipalities have their own police forces, _____ communication and making it difficult to establish a coordinated law-enforcement strategy.
- Aestablishing
- Bimpeding
- Champering
- Dlaunching
- Eobscuring
- Fpreventing
B,C显示答案
以上解析由 考满分老师提供。