设f(x)与g(x)均为无穷小,则以下函数仍为无穷小的是()
A. f+g
B. f-g
C. f*g
D. f/g
查看答案
单位序列响应h(n)是指离散系统的激励为 时,系统的零状态响应。
离散时间系统的零状态响应可由卷积和法求得。( )
A. 对
B. 错
The guide on how organisations can manage riskpublished by the Institute of Risk Managementisfreely downloadable from IRM’s website.
A. 对
B. 错
There are fourkey steps to the management of risk.
A. 对
B. 错