Why did the boy go to New York?    

    This is my home. We have three bedrooms, a living room, a kitchen and a bathroom. In the kitchen, there is a fridge. The vegetables and fruit are in the fridge. The juice is in it, too. In my bedroom, there is a bed, a chair and a computer. Now I'm watching TV in the living room. Mum is cooking in the kitchen. My sister is taking a shower in the bathroom. Our cat is under my bed.

【制度创新】无论是古代还是近现代，为了国家的稳定统一，经济的发展中国均采取了一系列制度创新。

【经济创新】生产工具的创新和改进是劳动人民智慧的结晶，也是社会生产力显著提高的标志。

【文化教育创新】

    “中国在许多个世纪以来，一直是人类文明的中心”。让我们与历史进行亲密接触，寻找其中蕴藏的民族智慧，感悟民族精神。

计算$\sqrt{3}·\sqrt{2}$=____．