在比例作用的基础上增加微分作用,使系统的稳定性()。 A.大大加强 B.有所加强 C 发布时间:2018-04-20 08:42 │ 来源:www.tikuol.com 题型:单项选择题 问题: 在比例作用的基础上增加微分作用,使系统的稳定性()。A.大大加强B.有所加强C.没有影响
题型:单项选择题 The Princess and the Frog is a fairy musical that _____ the days when Walt Disney was a person, not a brand. [ ]A. was dated back to B. dates back toC. has been dating from D. had dated from 查看答案