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    Hi. I'm Liu Ying. This is my school. It's big and beautiful. There are twenty classes in my school. There are nine hundred(百) students in my school. There are four beautiful gardens in it. There is a building in my school. On the first（第一） floor, there are two offices and a hall. There are six classrooms on the first floor too. On the second floor, there are fourteen classrooms and two toilets. There is a big library and some reading rooms in my school too. I like my school very much.

从世界范围看，一些国家在工业化、信息化、城镇化建设进程中，注重同步推进农业现代化，从而平稳较快地迈进现代化国家行列。相反，一些国家没有协调好“四化”关系，忽视了农业现代化，结果伴随着工业化、城镇化、信息化的发展，出现了农业萎缩、农村凋敝、农民贫困的情况，导致社会动荡、经济停滞，现代化进程受阻。下列举措有助于推进我国农业现代化的是(　　)

①针对我国农业劳动生产率和机械化程度偏低的现状，发展适度规模经营　②加快土地所有权自由买卖和流转，促进三大产业融合互动　③使农业由单纯农作物生产向农产品加工和流通及休闲等领域延伸　④引导农民在家乡就地打工，减少“空心村”和农村医疗保险总额资

下列各句中，划线的词语使用恰当的一句是（）