在国内,越高的楼层往往卖得越贵,但是,专家建议,购买楼房时,六七层的位置最佳。首先,从空气质量角度来说,高度在30米以上的,空气质量反而更差。而且,高层空气相对稀薄,患有某些疾病的人容易产生不适症状,尤其是慢性支气管炎、心脏病、心绞痛、心脑血管疾病患者,选择高层楼房时更要谨 In China, the higher floors tend to sell more expensive, however, experts suggest that the purchase of buildings, the six or seven layers of the best location. First of all, from an air quality point of view, air quality is worse at altitudes above 30 meters. Moreover, the upper air is relatively thin, people with certain diseases prone to discomfort, especially in patients with chronic bronchitis, heart disease, angina pectoris, cardiovascular disease, the choice of high-rise buildings even more like