An area several times as large is suffering a decline in productivity as it is________ by overuse.

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问题 An area several times as large is suffering a decline in productivity as it is________ by overuse.

选项 A、depressed
B、defaulted
C、deteriorated
D、degraded

答案D

解析 逻辑关系题:因果。[D]degraded “降级,退化”,常指使某物价值、质量等降低、降级,或坏的习惯和行为毁坏某人的品格,使他堕落或地位降低,如 to degrade oneself by cheating and telling lies (因欺骗说谎而自甘堕落)。句子当中是说过度使用使这块土地退化了,并且 degraded 与 decline 形成同义关系。[A] depressed“使沮丧,压下”,指使事物活力、效力等下降,或使人心情沮丧消沉; [B] defaulted “不履行责任,不履行契约”,如 default a loan(不偿付贷款);[C] deteriorated “恶化,变坏”,通常指关系或病情等恶化。
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