题目内容

A wise mother never ______ her children to the slightest possibility of danger.

A. exploits
B. exhibits
C. exhausts
D. exposes

查看答案

搜索结果不匹配？点我反馈

更多问题

At different genes, humans share a common genetic_____ with chimpanzees at different times.

A. competitor
B. investor
C. ancestor
D. editor

It can be hard for even a trained doctor to_____ the symptoms of lung cancer.

A. spot
B. sponsor
C. spray
D. spoil

音频信号是带有语音、音乐和音效的有规律的声波的频率、幅度变化的信息载体。根据声波的特征，可把音频信息分类（）和（）。

声波或正弦波有3个重要参数：（）、幅度和（），这也就决定了音频信号的特征。