【单选题】【消耗次数:1】
一般热水采暖系统供水温度为95℃,回水温度为( )℃。
50
60
70
80
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相关题目
【单选题】 低温热水采暖系统的供水温度为( )℃,回水温度为( )℃。
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③  100、70
④  95、70
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【单选题】 散热器集中系统宜按75℃/50℃连续供暖进行设计,且供水温度不宜大于85℃,供回水温差不宜小于( )。
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