【单选题】
They have never heard any ___.
A. a customer complaint
B. the customer's complaints
C. customer's complaint
D. the customers' complaints
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答案
C
解析
暂无解析
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信息化战争是指发生在信息时代，以信息为基础并以信息化武器装备为主要战争工具和作战手段，以系统集成和信息控制为主导，在全维空间内通过精确打击实时控制信息攻防等方式进行的瘫痪和震慑作战。
A. 对
B. 错
