As the pressure ______, the accumulated snow is turned into ice crystal.(1991年考试真题)

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问题 As the pressure ______, the accumulated snow is turned into ice crystal.(1991年考试真题)

选项 A、intensifies
B、magnifies
C、heightens
D、purifies

答案A

解析 该题考查后缀-ify,意为“使,让”,故intensify意为“强化,增强”;magnify意为“放大,扩大”;-en同样意为“使”,heighten意为“增高,提高”,指高度;purify意为“使净化”。
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