Some crops are relatively high yielders and could be planted in preference to ot

游客2025-04-09 5

问题 Some crops are relatively high yielders and could be planted in preference to others to_____the food supply.

选项 A、enhance
B、curb
C、disrupt
D、heighten

答案 A

解析各项的意思是：enhance“提高，宣扬”；curb“制止，控制”；disrupt“打断，分裂”；heighten“使显著，加强”。根据句意可知，应选择A。

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