题目内容：
掺铒光纤放大器的主要应用不包括（）
A.在线放大器
B.噪声放大器
C.前置放大器
D.本地网放大器
参考答案：
选择题：掺铒光纤放大器的主要应用不包括（）
- 题目分类：中国大学MOOC慕课
- 题目类型：选择题
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