题海让大学四年没有难题
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多选题 which of following is right?( )

A. Metro staff should put non-slip mats when it rains heavily outside

B. Metro staff should sweep the floor when it's wet or dirty

C. Metro staff should evacuate and lead passengers during bad weather

D. Metro stations should provide umbrellas and umbrella sets for passengers when it pours

学科:[共享课]城市轨道交通客运服务英语

时间:2025-06-16 00:15:32

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