题目内容

产生调频信号的方法有哪几种?

A. 直接调频
B. 高电平调频
C. 低电平调频
D. 间接调频

查看答案

搜索结果不匹配？点我反馈

更多问题

直接调频与间接调频相比,以下说法正确的是 ( )

A. 直接调频频偏较大
B. 间接调频频偏较大
C. 中心频率不稳定
D. 中心频率稳定

The money you get for putting money in a bank is______.

A. investment
B. earning
C. interest
D. paying

The person who gievs you a job is______.

A. an employee
B. a nice person
C. an employer
D. a rich person

Working late after work is called______.

A. overrun
B. over the top
C. overtime
D. overday