【单选题】What is Jim? He is ______.
【单选题】What's _____ name? [ ]
【简答题】◎◎○●●●◎◎○●●●…第33个珠子是______.
【简答题】光纤的色散对光纤通信系统的性能会产生什么影响?
【判断题】光纤的色散会使输入脉冲在传输过程中展宽,产生码间干扰。
【多选题】下列对光纤的色散相关概念叙述正确的有()。
D.
为了避免由色散引起的码间干扰的误码,应提高光纤的传输码速
【单选题】What did John think about Kate’s advice?
A.
He thought Kate was not brave enough.
B.
He thought Kate’s advice was stupid.
C.
He didn’t like Kate’s advice.
D.
He agreed with Kate in the end.
【简答题】回答第 33~34 题: 第 33 题 治肝胆疾患的要药是( )。