判断题
在一根光纤中传输多种不同波长的光信号,采用的信道复用方式为波分复用。
正确(↓↓↓ 点击‘点击查看答案’看答案解析 ↓↓↓)
单项选择题 抗战时期准备金制度以法币白银为主。( )
单项选择题 In APA style, two works by the same author published in the same year are arranged alphabetically with a lowercase letter added after the year to distinguish between them.
问答题 西辽的开国皇帝是( )。