第7题:[判断题]LAC板是自动调节光纤衰耗的,输出光功率是恒定的,当线路衰耗波动时候不需要人为干预。
The LAC board adjust the optical attenuation automatically. The output optical power is constant. When the line attenuation fluctuates, no manual intervention is required. (Zhang Shaofeng) A.正确 B.错误 参考答案:B 错误