题干
After receiving the news , immediate _______ had been taken by the local government to stop the disease spreading .
A：speed
B：behavior
C：actio
D：measure
答案(点此获取答案解析）
C
上的点 处的切线倾斜角为45°，则该点坐标是( )
（－3≤x≤3）的值域是( )