After the earthquake, the first thing the local government did was to provide ________ for the

homeless families. [      ]

A. occupation  

B. furniture

C. equipment  

D. accommodation

如图所示，男孩脚踩滑板车从高处滑下，在下滑的过程中（     ）

A．动能增加，势能减少

B．动能增加，势能增加

C．动能减少，势能增加

D．动能减少，势能减少