在EDFA内部,通过采用()滤波器,使EDFA在相应的波长范围内,对每一个复用光通路信号都具有几乎相同的增益。
A.增益平坦
B.增益不平坦
C.噪声平坦
D.噪声不平坦
参考答案:A
.
I feel honored to introduce Mr White to you, without _________consideration our project
would have ended in failure.
A.whom
B.that
C.whose
D.who
引起非淋菌性 * * 炎最常见的病原体是
A.解脲支原体B. * * 毛滴虫C.白色念珠菌D.单纯疱疹病毒E.沙眼衣原体