The traditional houses in northern China have the following characteristics: the roof slope is relatively large; (b) The slope of the roof is relatively small; (c) The wall is relatively thin; (d) Win

The traditional houses in northern China have the following characteristics: the roof slope is relatively large; (b) The slope of the roof is relatively small; (c) The wall is relatively thin; (d) Windows are multi-directional. The northern region belongs to temperate monsoon climate, with cold and dry winter and high temperature and rainy summer. The architectural style of the house is closely related to the climate, with less precipitation in the north and flat roof or small slope. Cold in winter, thick walls, pay attention to cold and warmth, large windows and good lighting conditions; The wall is short because of the strong wind and sand.

Therefore, choose: B.