The phrase "fall by the wayside" in the second sentence, Paragraph t means"______". The author appears to tell us ______.

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问题 The phrase "fall by the wayside" in the second sentence, Paragraph t means"______".
The author appears to tell us ______.

选项 A、how food industry works
B、how to introduce a new food technology into a developing country
C、key factors of applying technological solutions to the problem of food shortages
D、some food technological innovations

答案C

解析 主旨题。文章第一段指出过去一些粮食生产新技术半途而废的原因;虽然技术上可行,但不经济或者在文化上让消费者难以接受。第二段对比说明了粮食生产安全性、粮食贮藏的实用性、粮食成本等因素对新技术成功的重要性。第三段则重点讨论了经济因素和政府的粮食政策的重要性。因此不难看出,文章要说明的就是对一种新技术成功很重要的这些因素,因此主旨是[C]。
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