简述家庭治疗的主要原则。
品牌一方面可以维护企业的信誉与利益;另一方面也可以保护消费者的利益,这反映了品牌的() ["识别功能","记忆功能","促销功能","保护功能"]
下列哪种说法是错误的() ["前照灯的光束是可调的","前照灯需要防水","远光灯的功率比近光灯的功率大","前照灯的灯泡是不能单独更换的"]
When performing an incomplete recovery of the whole database, what must be true about the data files that are restored?() ["A","B","C","D"]
以下哪个事件不是2009年发生的?() ["美国发射月球探测器","俄罗斯发射火星探测器","欧洲发射“赫歇尔”和“开普勒”空间望远镜","“广角红外探测者”空间卫星发射"]
空调制冷工作的四个过程为()、()、()和()