Steep stairs can present a particular hazard to older people.

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问题 Steep stairs can present a particular hazard to older people.

选项 A、danger
B、case
C、picture
D、evidence

答案A

解析 划线词为名词,意思是“危险”,与A项danger(危险)为同义词,又如:In case of danger,raise the electric alarm.如果有危险,就拉响电动警报器。B项意为“事例”,例:Could you give us a concrete case?你能给我们举个具体事例吗?C项意为“图片”。例:All the pictures should be faced forward.所有的图片都应朝前摆。D项意为“证据”,例:The room bore evidence of a struggle.房间里有搏斗过的痕迹。
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