早晨,我刚到学校,同学陈某立即向我反映:昨夜他放在教室里的复读机不见了,陈某一边说,一边流泪,他的父亲是下岗工人,为了他能读好英语,特地向别人借钱买来的。我听后,心里很急,连忙进行调查,发现教室的门窗完好,锁头也没有破坏的痕迹。管钥匙的同学反映“:昨天晚上夜自修结束后,同学张某匆匆地跑来说自己衣服掉在教室里,我把钥匙借给了他,过了十几分钟,张某同学又把钥匙送了回来,是不是他偷的?” In the morning, when I first arrived at the school, my classmate Chen immediately responded to me: The repeater he had placed in the classroom had disappeared last night. Chen said one side and cried. His father was a laid-off worker and he was able to read English very well. Borrowing money from others. After I heard it, I was very worried. I quickly investigated and found that the doors and windows of the classroom were intact and the locks were not damaged. The key-control classmates reflected: “Last night after the night of self-study, classmate Zhang hurriedly ran and said his clothes fell in the classroom. I lent my key to him. After ten minutes, Zhang’s classmate sent the key again. When he returned, was he stealing?"