Crisis would be the right term to describe the______in many animal species.

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问题 Crisis would be the right term to describe the______in many animal species.

选项 A、minimization
B、restriction
C、descent
D、decline

答案D

解析 decline“下降,衰退”,反义词为increase,在哪方面下降接介词in,如:the decline of one’s health“健康状况下降”,the decline of birthrate“出生率的下降”,thedecline in the rate of foreign exchange“外汇率下跌”,a decline in the standard of living“生活水平下降”;minimization“最小化”,反义词为maximization;restriction“限制,限定,约束”,对……限制接介词on,如:restriction on water supply“供水限制”;descent“下降,世系”,反义词是ascent,指从高处向低处移动或高位降下来,如:thedescent of mountain“下山”,the descent of balloon/parachute“气球/降落伞下降”,the descent of temperature“温度下降”。一方面根据句子意思“动物种群衰落”,另一方面根据已给的介词in,选择decline最恰当。题句意:“危机是用来描述许多动物种群衰退的恰当术语。”
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