问题
单项选择题
通过观测系统的输入输出关系来建立系统数学模型的方法叫:()
A、系统分辨
B、系统辨认
C、部分辨识
D、系统辨识
答案
参考答案:B
通过观测系统的输入输出关系来建立系统数学模型的方法叫:()
A、系统分辨
B、系统辨认
C、部分辨识
D、系统辨识
参考答案:B
Passage Two
The Prudhoe Bay oilfield has been shut down because ______.
A.there was a serious leakage problem with the pipeline
B.the pipeline suffered a small leak and severe corrosion
C.better pipeline was needed to meet the increasing production
D.the newly-replaced pipeline didn’t work properly