单选题与A.M通信相比SSB通信对载波的频率稳定度要求（）。A较高B不限C较低D与AM相同
单选题
与A.M通信相比SSB通信对载波的频率稳定度要求（）。
A
较高
B
不限
C
较低
D
与AM相同
参考解析
解析：
暂无解析
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