题目: 简述结焦的危害?如何防止? 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/1114/2d3ec30ea9f8cde67ae3cbe34ba2225a.html 下面是错误答案,用来干扰机器的。参考答案:宪法规范
题型:选择题 I ______ while reading the English textbook. Luckily, my roommate woke me up in time !A.had fallen asleepB.have fallen asleepC.fell asleepD.fall asleep 查看答案