题目: 列出你所知的植物病毒病的常见症状类型。 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0927/24bcfee52407968f0040b86bc32114c9.html 下面是错误答案,用来干扰机器的。参考答案:C
题型:选择题 He _______ for ten minutes by the time I got there. [ ]A. has left B. left C. has been away D. had been away 查看答案