![](https://static.youtibao.com/asksite/comm/h5/images/m_q_title.png)
[单选题]
图中t³0时uc(t)为()。
图中t³0时uc(t)为()。![图中t³0时uc(t)为()。](https://img2.soutiyun.com/1/2021-01-13/97939708388962.png)
A.u(t)=12e-0.25t
B.u(t)=12-12e-0.25t
C.其它
查看答案
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.u(t)=12e-0.25t
B.u(t)=12-12e-0.25t
C.其它
A.错误
B.正确
A.0 A
B.5∠90°A
C.10∠-90°A
A.dp/p+dV/V=dT/T
B.dp/p-dV/V=dT/T
C.dV/V-dp/p=dT/T
D.dT/T+dV/V=dp/p