Steep stairs can present a particular hazard to older people.（）A.evidence B.dang

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

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

答案B

解析本题是对名词的考查。题干：陡峭的楼梯对于老年人特别危险。划线单词hazard意为“危险”。四个选项：evidence意为“证据，迹象”，danger意为“危险”，case意为

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