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1 Lately many people have been discussing how to ensure _____ water, food, energy, and other natural resources for a large world population. 106 統測
A extreme
B individual
C respective
D sufficient

最近人們一直在討論如何去確保大量的世界人口有足夠的水、食物、能源和其他天然資源。

extreme 極端的 ;individual 個人的 ;respective 各自的 ;sufficient 足夠的