多项选择题The south street of Pingyao is the axis, with the city tower in the center, buildings for ancestors on the left and for the nation on the right, pen in the east and sword in the west, Daoism temple in the east and Buddhism temple in the west, more than 50 public buildings distributed in order. The road is composed of _______ in the grid. A、four big streets B、eight small streets C、thirty-two winding lanes D、seventy-two winding lanes