治安管理的服从服务原则的核心，是服从党和国家的路线、方针和政策，服务于社会主义经济建设。
参考答案：对
As he works in a remote area, he visits his parents only _________.
A．occasionally
B．anxiously
C．practically
D．urgently
《两面国》多九公道：“诸如此类，也是世间难免之事，何足为怪！”怎样理解这句话的含义？
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