I need to be more mature and ready to ______ my mistakes.
A：hold on to
B：cut off
C：make up for
D：take up
北京历史悠久，名胜古迹众多，下列名胜古迹中不属于北京的是（ ）
若5x=16与5y=2，则5x﹣2y=____ ．
____
3
2
6
