压力机气垫又称拉伸垫,用来拉伸时压边防止起皱,作顶料或作工件底部局部成型用。
参考答案:对
It___________we had stayed together for a couple of weeks -_______________I found we had
a lot in common. [ ]
A. was until ; when
B. was until ; that
C. was not until;when
D. was not until;that
《权利法案》、《 * * 宣言》和《独立宣言》都体现了时代精神,主要表现在它们都主张 [ ]
A.反对君主专制,建立共和制
B.反对殖民压迫,实现民族独立
C.建立君主立宪制
D.建立资本主义民主社会