将画有一条数轴的一张纸对折后,如果该数轴上表示3的点与表示-1的点恰好重合,那么此时与表示-3的点重合的点在数轴上所表示的数是 ( )
A.1 B.3 C.5 D. 7
If a sheet of paper with a number line drawn on it is folded in half, and the point representing 3 on the number line coincides exactly with the point representing −1, then the number represented by the point coinciding with the point representing −3 on the number line is ( )
A.1 B.3 C.5 D. 7