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[问答题,计算题] 一台燃油锅炉,已知各项热损失如下:q2=6.5%,q3=0.5%,q4=0%,q5=0.7%,求该锅炉热效率η是多少?

()见吕通将粪桶丢入,万震山的哪个弟子首先破口大骂? ["万圭","吴坎","周圻","卜垣"] ()万震山的儿子万圭在万震山第子中排行第几? ["一","三","五","七"] 关于子宫肌瘤CT表现的描述中,错误的是:() ["肌瘤内出现钙化","子宫增大伴有形态异常","少数肌瘤可位于子宫颈或阔韧带内","以多发肌瘤常见,瘤内可发生坏死","增强扫描肌瘤强化程度高于子宫肌层"] ()吕通说万震山十年前欠了他多少两银子? ["一","五","十","一百"] 膀胱癌的直接CT征象不包括:() ["膀胱壁局限性增厚","膀胱腔内肿块","膀胱周围脂肪组织中出现软组织密度影","膀胱精囊角为软组织充填","盆腔内可见1.0cm大小淋巴结"] 一台燃油锅炉,已知各项热损失如下:q2=6.5%,q3=0.5%,q4=0%,q5=0.7%,求该锅炉热效率η是多少?
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