中厚板轧机的()用来将轧件对准轧制中心线,并尽可能在轧制过程中导向。
A.推床
B.推钢机
C.冷床
D.辊道
参考答案:A
When I turned to the person ________ next to me, I recognized that he was my schoolmate.[ ]
A.seating
B.being sat
C.sit
D.seated
民族国家的建构不存在任何危机。