【简答题】一条铁路线在空间的位置是用它的线路中心线来表示的,中心线点的位置是在()中点。
【单选题】有一批经过热变形的锻件,晶粒粗大,不符合质量要求,主要原因是( )。
【简答题】I would rather think of life as a good book. The further you get into it, the more it begins to come together and ____. (get along, make sense, close in on, close up)
【判断题】铁路线路在空间的位置是用它的中心线来表示的。
【单选题】关于心交感神经节后纤维释放的递质哪项不正确
【单选题】I don't think he meant to hurt you yesterday. I would rather he ________ .