注射成型成型前得准备工作包括（）A、原料的检验 B、嵌件预热 C、料筒清理 D、模具清理E 发布时间：2018-03-16 23:01 │ 来源：www.tikuol.com 题型：多项选择题 问题： 注射成型成型前得准备工作包括（）A、原料的检验B、嵌件预热C、料筒清理D、模具清理E、染色和干燥
题型：多项选择题 补全对话。A: Good morning, Mr Wang. 1 B: I'm from England. A: 2 B: I work in a middle school. I'm a teacher. A: 3 B: I teach English. A: 4 B: A little. I have a Chinese class every night. A: Good! 5 B: Yes, I do. The Chinese people are very friendly.A. Do you like working in China? B. Where are you from? C. Can you speak Chinese? D. Where do you work? E. What do you teach?1. 2. 3. 4. 5. 查看答案