某住宅楼共170户，每户按4人计，采用全日制集中热水供应系统。热水用水定额按100L/（人·d）计（60℃，ρ=0.9832kg/L），冷水温度按10℃计（ρ=0.9997kg/L），则该住宅楼的设计小时耗热量为（）W。
A．466599
B．515154.05
C．5151.54
D．51.52
参考答案：B
解析：
根据《建筑给水排水设计规范》(GB 50015—2003)(2009年版)第5.3.1条，全日制热水供应系统的设计小时耗热量应为(其中，小时变化系数用内插法求出的为3.18)
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| In our discussion with people on how education can help them succeed in life, a woman remembered the first meeting of an introductory __1__ course about 20 years ago. The professor __2__ the lecture hall, placed upon his desk a large jar filled with dried beans (豆), and invited the students to __3__ how many beans the jar contained.After __4__ shouts of wildly wrong guesses the professor smiled a thin, dry smile, announced the __5__ answer, and went on saying, "You have just __6__ an important lesson about science. That is: Never __7__ your own senses." Twenty years later, the __8__ could guess what the professor had in mind. He __9__ himself, perhaps, as inviting his students to start an exciting __10__ into an unknown world invisible (无形的) to the __11__ , which can be discovered only through scientific __12__. But the seventeenyearold girl could not accept or even __13__ the invitation. She was just __14__ to understand the world. And she __15__ that her firsthand experience could be the __16__ .The professor, however, said that it was __17__. He was taking away her only __18__ for knowing and was providing her with no substitute (替代). "I remember feeling small and __19__ , " the woman says, "and I did the only thing I could do. I __20__ the course that afternoon, and I haven't gone near science since." | ||||
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