我国公安队伍能有统一的认识、统一的部署、统一的行动，是与有统一的公安政策分不开的。( )
参考答案：对
Which of the following most accurately describes the competitive structure that is characterized by a firm that operates with the lowest average total cost and has the capacity to produce all of an industry's output（）
A. Oligopoly.
B. Competitive monopoly.
C. Natural monopoly.
判断重症烧伤病人休克是否得到改善，哪项临床监测指标最可靠()
A．心率
B．每小时尿量
C．呼吸频率
D．是否口渴
E．神志
