单选题 The once barren hillsides are now good farmland.
【正确答案】 B
【答案解析】[解析] 画线词barren为形容词,意为“贫瘠的”。A项hairless意为“无毛发的”;例:What struck me was the hairless head of that boy. 让我感到惊讶的是,这个男孩的头上也是光秃秃的。B项bare意为“光秃的”;例:The fierce sun parched the bare earth. 灼热的阳光炙烤着光秃秃的大地。C项empty意为“空的”;例:His room is empty. 他的房间是空的。D项bald意为“秃头的”;例:He shaved his head bald. 他剃了个光头。故本题选B。