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【单选题】
通信系统可分为基带传输和频带传输,以下属于频带传输的方式是
A.
PAM传输方式
B.
PCM传输方式
C.
PSK传输方式
D.
DPCM传输方式
拍照语音搜题，微信中搜索"皮皮学"使用
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