【多选题】下面哪些描述是正确的:
B.
对于单容自衡过程;其数学模型可以通过一个一阶惯性环节描述;
C.
对于多容过程,其传递函数可以通过将每个容积过程所对应的环节传递函数相乘来描述;
D.
多容自衡过程的响应速度可通过增大其容量系数的方法来提高。
【单选题】听力原文:W: Excuse me, where is the nearest supermarket? M: Go along this road and then turn right at the first crossing. You'll find it on your right. W: Thanks a lot. M: You're welcome. Q: Where does th...
【单选题】听力原文:(W = Bank clerk M = Man) W: Excuse me, sir, is there a problem? M: WelI, yes, I don't really understand it. When I put my card in, the machine ate it. W: Ate it ? You mean it didn' t give it back...
【单选题】听力原文:M: Come in! W: Er, excuse me, professor Serafin, are you busy? M: No, Miss Van Pelt, I've always got time for you. There're several things I want to talk to you about. W: Oh, really? M: Yes, er, ...
【单选题】听力原文:M: Excuse me, Madam. W: Yes? M: How can I get to the Chaoyang Park? W: Take the bus No. 331 to the final stop. M: It's very kind of you. W: My pleasure. What is the relationship between the speak...
C.
They are brother and sister.
【判断题】温度的变化是通过滞回比较器的输出来改变三极管的工作状态从而切换继电器的接通位置。