A.10~20000HZ
B.20~15000HZ
C.200~3400HZ
D.50~7000HZ
[单选题]调频广播的频带范围是()。A.10~20000HZB.20~15000HZC.200~3400HZD.50~7000HZ
[单选题]调频广播的频带范围是()。A.10~20000HZB.20~15000HZC.200~3400HZD.50~7000HZ
[单选题]调幅广播的频带范围是()。A.50~7000HZB.200~3400HZC.20~15000HZD.10~20000HZ
[单选题]调幅广播的频带范围是()。A.50~7000HZB.200~3400HZC.20~15000HZD.10~20000HZ
[单选题]调幅广播的频带范围是()。A.50~7000HZB.200~3400HZC.20~15000HZD.10~20000HZ
[单选题]我国调频广播的载波频率范围是()。A .535KHz~1605KHzB .535MHz~1605MHzC .65.8MHz~108MHzD .87MHz~108MHz
[单选题]调频广播声音质量的频率范围是。()A . 200~3400HzB . 50~7000HzC . 20~15000HzD . 10~20000Hz
[问答题] 什么是调频同步广播?
[填空题] 调频广播与调幅广播相比,具有()。
[单选题]调频广播和调幅广播都属于()。A.数字广播B.模拟广播C.网络广播D.对外广播