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、picture
B、danger
C、evidence
D、case

答案B

解析 本题大意:陡峭的楼梯对老年人特别危险。hazard和danger意思相同,表示危险;picture:图片,图画;evidence:证据,迹象,如:There is no evidencethat there will be an earthquake there.没有迹象表明那个地区会发生地震。case:情况,如:Is that the case?是这样的情况吗?
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