频率常数
参考答案：
晶片共振频率与其厚度的乘积
Before we focus on what must happen next, let us pause for a minute and ________ on that initial
debate and the lessons to be learnt.[ ]
A. strike
B. reflect
C. inspire
D. imagine
DWDM系统单元——光放大单元EDFA的关键指标是什么？
the lessons to be learnt.[ ]