This 【boom】 in adult education,in turn,helps to raise the intell

This 【boom】 in adult education,in turn,helps to raise the intellectual standard of the whole country.
A、growth
B、measure
C、bonus
D、behemoth
【正确答案】：A
【题目解析】：句意：成人教育热反过来又促进了整个国家文化水平的提高。boom在句中的意思是“迅速发展”。选项中growth意为“发展”;measure意为“措施”;bonus意为“奖金”；behemoth意为“巨兽”。故本题选A。