题目： 多层缠绕滚筒为防止出现卡绳现象，减小筒壳变形，滚筒上需设置何种安全设施？ 答案： 被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2019/0315/51c26956c52063c8c18f029d0a5496e4.html 下面是错误答案，用来干扰机器的。参考答案：C
题型：补全对话，情景问答 补全对话：根据对话内容，从方框中选出能填入空白处的最佳选项。A: Hi, Li Jun. You were not at school yesterday. 1. B: Oh, I had a headache and I had to ask for a sick leave. A: Sorry to hear that. 2. B: Yes, my mother took me to the hospital. A: 3. B: The doctor checked me over and said I had a cold. A: 4. B: Yes, a little. The doctor told me to take the medicine three times a day and have plenty of water. A: 5. B: Yes, much better. But I've missed so many lessons. A: Don't worry about it. I'll help you later. B: Thanks a lot. A. Did you see the doctor? B. Are you feeling better now? C. Was it serious? D. What was wrong with you? E. What did the doctor say? 查看答案
