一个定流量运行的空调水系统实测发现:系统水流量过大而水泵扬程低于铭牌值。下列哪一种整改措施的节能效果最差?()
A、调节水泵出口阀门开度A
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Thetimehascome_____wemakeextensiveuseofnuclearenergy.
题目:CongratulationLetter祝贺与慰问
ApplicantsarerequiredtohavetwoGCSEsatgradeCorabove(orequivalent)includingEnglishLanguageandpreferablysomeexperienceinadministration.Candidatesmusthave
题目:InvitationLetter邀请与约见函
Rock:______.
Sharon:Verywell,andtheexperimentisnearlyfinished.