A:将木柴架空燃烧,目的是增大可燃物与氧气的接触面积,促进燃烧
B:逃离火灾现场时,可用湿毛巾捂住口鼻,并尽量贴近地面逃离
C:救火时,不要贸然打开所有门窗,以兔空气对流促进火势蔓延
D:油锅着火,用锅盖盖上,是为了降低可燃物的温度
—Have you found your lost mobile phone?— No, I haven't found , but I bought this morning.
下列4幅图中表示冷锋天气的是( )