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一天上午,大厦管理员为了房屋维修的事去拜访黛妮小姐,他按了一下门铃,却无人应答。这幢大厦的门锁都是自动锁,一旦关上,除非有钥匙,否则外面的人无法进入。大厦管理员很奇怪,便回去拿了备用钥匙把门打开,却看到黛妮穿着睡衣,胸口被人插了一刀死在地上。法医赶到现场后推测黛妮的死亡时间是昨晚9点前后,而这个时间只有两个人来过黛妮家,一个是她的男朋友,一个是她的学
One morning, when the building manager visited Miss Dai Ni for house repairs, he pressed the doorbell and nobody answered. The locks in this building are self-locking, once closed, unless there is a key, or outsiders can not enter. Building manager is very strange, they took the spare key to open the door, but saw Dai Ni wearing pajamas, chest was inserted a knife dead on the ground. After the forensic arrived at the scene speculated that Dai Ni’s death time was around 9:00 last night, and this time only two people have been to Dai Ni, one is her boyfriend, one is her school