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【单选题】
下列有关光纤通信的说法错误的是
A.
光纤通信是利用光导纤维传导光信号来进行通信的
B.
光纤通信具有通信容量大、保密性强和传输距离长等优点
C.
光纤线路的损耗大,所以每隔1~2km距离就需要中继器
D.
光纤通信常用波分多路复用技术提高通信容量
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