We would like pD=0 when p=pi , pD to increase with time and pD to be positive.So we rewrite pD in the form().

2024-01-12

We would like pD=0 when p=pi , pD to increase with time and pD to be positive.So we rewrite pD in the form().

A.pD=(pc-p)/pi

B.pD=(p-pc)/pi

C.pD=(p-pi)/pc

D.pD=(pi-p)/pc



参考答案:

pD=(pi-p)/pc