Demodulation is the act of extracting the original information signal from a modulated carrier wave.
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The FM band has become the choice of music listeners because of its high-noise, wide-bandwidth qualities. It is also used for the audio portion of a television broadcast.
A. 对
B. 错
影响性能力的因素包括？
A. 性经验
B. 人际关系
C. 体质
D. 情绪
人生的路虽然漫长，但紧要处只有几步，而恋爱正是其中关键一步。
A. 对
B. 错
耶鲁大学社会心理学家桑代克认为，爱情是由亲密、激情以及承诺三因素组成的三角形。
A. 对
B. 错
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