警察正在调查一个案件的犯罪现场:从窗外飞来的子弹射中房间里的一个人。据说当时没有人在现场,而且此人当场死亡。奇怪的是,死者分明只中了一枪,而活动窗户的玻璃上却有两个洞,这是为什么呢? Police are investigating a crime scene at a crime scene: a bullet coming from outside the window shoots in the room. It was said that no one was at the scene at the time, and the person died on the spot. Strangely enough, the dead were shot in the clear, while the active window had two holes in the glass. Why?