行 * *
参考答案：
是依照法律规定，组织和管理公共事务以及提供公共服务的权力。是国家权力的组成部分之一。
During the winter, 1 birds disappear. They fly away 2 the weather is cold. There are no insects in the air and they 3 find any food. These birds fly 4 warmer places. The weather is 5 and warm,and they can find food easily.
路堑段的路肩开挖时应尽量使路槽的侧壁为( )，以减少麻烦或造成浪费。
A．水平面
B．竖直面
C．垂直面
D．横向面
