A:did they get to the statio
B:had they got to the statio
C:they got to the statio
D:they had got to the statio
英国资产阶级革命中被送上断头台的国王是( )
下列最能说明鲸鱼是哺乳动物的是( )
下列图形中,由AB∥CD,能得到∠1=∠2的是