【判断题】The seventh person is never ever late except when a bridge or a major highway is closed.
【判断题】齿轮传动的标准安装是指分度圆与节圆重合。
【多选题】有关图样标注的尺寸组成内容包括下列哪些( )
【单选题】A highway bridge ______over the river. They hope to finish it next month.
【单选题】The Sutong Highway Bridge, a _ bridge, is already open to traffic. [ ]
【单选题】()也称由任,由于需要拆装处的一根公称直径相同的管子链
【判断题】齿轮传动的标准安装是指分度圆与节圆重合。
【单选题】齿轮传动的标准安装是指分度圆与 ______ 圆重合。