问题
单项选择题
串级调节系统中,副参数的给定值与主参数之间有()关系。
A、正比例
B、反比例
C、线性
D、非线性
答案
参考答案:C
串级调节系统中,副参数的给定值与主参数之间有()关系。
A、正比例
B、反比例
C、线性
D、非线性
参考答案:C
小题2:It’s the _____________ season in China because of Spring Festival. 小题3: Ask him if he wants to write something about staying ______________. 小题4: In fact, even the simplest everyday activities can make a real ___________to the environment. 小题5: You are not _______________to touch the exhibits. |