To make a living,they are willing to ________ many of the disadvantages of city life such as crime,heavy traffic and pollution. ( )
A:put up
B:put off
C:put up with
D:put away
牛顿和达尔文的贡献分别是( )
如图所示是一物体的x-t图象,则该物体在6 s内的路程是( )
在直角坐标系xOy中,角α的始边为x轴的非负半轴,终边为射线l:y=22x(x≥0).求cos(α+π6)的值;