Limited agricultural productivity, continued land degradation and water_________

游客2025-01-29 8

问题 Limited agricultural productivity, continued land degradation and water_________have made food self-sufficiency goals unachievable.

选项 A、scarcity
B、variety
C、rarity
D、validity

答案 A

解析句意：有限的农业生产力、持续的土地退化和水资源匮乏，使得食物自给自足的计划变得难以实现。scarcity(缺乏，不足)；variety(多样性，变化)；rarity(稀有)；validity(有效性，合法性)。所以选项A为答案。

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