公安机关是我国人民民主专政 * * 中具有武装性质的治安行政和刑事司法机关。()
参考答案：对
Which function is NOT served by building a prototype
A．It takes the place of the final syste
B．It assists in gathering software requirements
C．It assists in estimating the cost of the projec
D．It is used as the foundation of the larger project
表明物体冷热程度的物理量是（）。
A.浓度
B.热量
C.温度
D.热能
