客户/服务器(C/S)结构的主要优点是
A.加强了对共享信息的管理,扩展性强
B.提高了系统的可维护性,降低了维护成本
C.加强了对共享信息的管理,提高了系统的运行效率
D.加强了信息安全,支持Internet
正确答案是C
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