图中圈内三角填充区域是什么标线？（）
A．网状线
B．停车线
C．减速线
D．导流线
参考答案：D
已知点M（a+1，a-1）在y轴上，则点M的坐标是______．
When he moved to Canada, his children __________ the change very well.
A．adopted to
B．used to
C．adapted to
D．got along with
