【正确答案】 C

【答案解析】[解析] accumulate：积累；积聚。collect：收集；积聚。Dust collected on the furniture. 家具上积了灰尘。increase：增加。Japan's industrial production increased by 20% last year. 去年日本工业生产增长了20%。spread：展开；蔓延。Fire spread rapidly after a chemical truck exploded. 一辆装载化学物品的卡车爆炸后，火势迅速蔓延。grow：增长；长满。The path grew with weeds. 小路上长满了野草。