A:①④
B:③⑤
C:①②③⑤
D:①②③
物体做直线运动的vt图象如图所示.则该物体( )
一____树
一____花
一____草
一____桌子
一____椅子
一____粉笔
-- ______ our eco-travel plan might be put off.
-- Yes, it all depends on the weather.