用精馏分离某二元混合物系,若进料流量为5000kmol/h,轻组分x(F)=50%,要求塔顶产品x(D)≥95%,塔底产品x(w)≤5%,求塔顶、塔底的出料流量。
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--Look at the children in the lake. They are playing happily. Let’s , too.Good idea.
A. go hiking
B. go camping
C. go boating
D. go sightseeing
The traffic is heavy. with your children in the street.
A. Not play
B. No play
C. Don’t play
D. No playing
--Don't take pictures here, please. .
A. No way
B. Sorry, I won't
C. Here you are
D. It's a pleasure