(单选题)

23.（）

A.absent

B.present

C.restricted

D.magnified

参考答案：A

参考解析：

考查形容词辨析。句意：声音的存在意味着一切正常——如果没有声音，那就是故障的信号。absent意为“缺席的，不在的，缺乏的”；present意为“出席的，现在的，当前的，存在的”；restricted意为“受限的”；magnified意为“放大的”。根据前后文的逻辑关系可知，作者认为没有声音就代表出了问题。故选A。

知识点：有选项完形填空英语专业基础知识完形填空教师招聘-小学英语

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