试画出图a和b两种情形下各构件的受力图，并加以比较。

有(a)、(b)两个T-x图,试比较在此两种情况下,从a处蒸发出第一滴液体玲凝至b处的过程有何不同？ <img src='https://img2.soutiyun.com/ask/2020-12-22/977489310812388.png' />

<img src='https://img.soutiyun.com/ask/zq/20210729/996401645307082.png' />

<img src='https://img2.soutiyun.com/ask/2020-05-14/958319412986085.png' />

如图6. 17(a)(教材图6.08(a))所示电路,输人u1波形分别如图6.10(b)、(c)所示，试画出u0波形图。 <img src='https://img2.soutiyun.com/ask/2020-07-13/963480459412622.png' /> <img src='https://img2.soutiyun.com/ask/2020-07-13/963480470227241.png' /> <img src='https://img2.soutiyun.com/ask/2020-07-13/963480480897851.png' />

图P9.8(a)是用CMOS门电路和RC积分环节组成的积分型单稳态电路。试画出在图P9.8(b)所示输入脉冲作用下υ₀₁、υ₁₂和υ₀的电压波形。假定触发脉冲的宽度大于输出脉冲的宽度。 <img src='https://img2.soutiyun.com/ask/2021-02-02/981104364794121.png' />

图4. 13(a)(教材图4.10)中,A，B和 的波形为已知,试画出<img src='https://img2.soutiyun.com/ask/2020-07-10/96324702962287.png' />，Q和<img src='https://img2.soutiyun.com/ask/2020-07-10/963247044030694.png' />的波形图。 <img src='https://img2.soutiyun.com/ask/2020-07-10/963247061018666.png' /><img src='https://img2.soutiyun.com/ask/2020-07-10/96324707891169.png' /> <img src='https://img2.soutiyun.com/ask/2020-07-10/963247105177192.png' />

试画出图P4.8所示电路中输出端B的波形(触发器起始状态为0).A是输入端,比较A和B的波形,说明此电路的功能. <img src='https://img2.soutiyun.com/ask/2020-10-12/97136953887336.png' />

A．（a）更危险 B．（b）更危险 C．同样危险 D．无法确定

根据图P2.6(h)所示输入信号A、B的波形，对应画出图P2.6(a)~(g)中所示各电路输出信号的波形。 <img src='https://img2.soutiyun.com/ask/2020-10-14/97154499679362.jpg' />

<img src='https://img2.soutiyun.com/ask/2021-02-18/982516450939609.png' />