单位面积产量

问答题立足国内资源，实现粮食基本自给，是中国解决粮食供需问题的基本方针。中国将努力促进粮食增产，确保在正常情况下粮食自给率不低于95%，净进口量不超过国内消费量的5%。现阶段中国已经实现了粮食基本自给，在未来的发展过程中，中国依靠自己的力量实现粮食基本自给，客观上具备诸多有利因素。根据中国农业自然资源、生产条件、技术水平和其他发展条件，粮食增产潜力很大。

问答题The people were there, and the land—the first dazed and bleeding and hungry, and, when winter came, shivering in their rags in the hovels which the bombings had made of their homes, the second a vast wasteland of rubble. The German people had not been destroyed, as Hitler, who had tried to destroy so many other peoples and, in the end, when the war was lost, themselves, had wished.

问答题如果将各环节的损失降至合理范围，每年至少可节约粮食2000万吨。译文：If such losses are reduced to the rational range, at least 20 million tons of grain can be saved every year.

问答题到2000年使科技进步对农业的贡献率提高到60%。译文：By 2000 the contribution rate of science and technology to agriculture will increase by 60 percent.

多项选择题每公顷粮食产量可以提高1500公斤以上。译文：The grain output per hectare can be increased more than 1500kg.