【单选题】Snape got to his feet and strode to the small window, ____ through the curtains at the deserted street, then closed them again with a jerk.
【单选题】习近平强调,党的十九大决定,以______ 以上领导干部为重点,在全党开展“不忘初心、牢记使命”主题教育
【单选题】习近平强调,党的十九大决定,以 级以上领导千部为重点。( )
【单选题】在步进电动机步距角不能满足要求时,可采用( )功能来驱动步进电动机。