【判断题】对格构柱,不论截面大小,均应设置横隔,横隔的设置方法与轴心受压格构柱相同。
【判断题】设p、q为任意的命题公式,则(p→q)↔( ¬p→¬q) 是永真式。
【判断题】交感神经兴奋时,心率加快,支气管平滑肌舒张,瞳孔缩小。
【判断题】对格构柱,不论截面大小,均应设置横隔,横隔的设置方法与轴心受压格构柱相同。
【单选题】You can set up a business quite easily providing that you _____ sufficient resources.
【判断题】In Britain, you can look at a stranger for as long as you like providing they are not standing next to you.