Tractors and other agricultural machines greatly facilitate farm

Tractors and other agricultural machines greatly facilitate farming.
A、communicate
B、subsidize
C、grade
D、ease
【正确答案】：D
【题目解析】：句意:拖拉机和其他农业机器很大程度地促进了耕作。facilitate在句中的意思是“使便利”。选项中communicate意为“传达”;subsidize意为“资助”;grade意为“分等级”; ease意为“减轻”。故本题选D。