题目： 如果用带有PG的电机，进行反馈后速度精度能提高吗？ 答案： 被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0926/a612fd4cd9740476c0b8b1ddf1f575ff.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 选择合适的答句。( ) 1. Do you like pears?( ) 2. Where's the library?( ) 3. How many books do you have?( ) 4. Where's Lily?( ) 5. Who's that boy?( ) 6. What would you like for dinner?( ) 7. Let's go to the playground.( ) 8. What's his name?A. It's on the first floor. B. He's my friend. C. His name is Jack D. I'd like some fish and rice. E. Great! F. I have fifteen. G. No, I don't. H. She's in the garden. 查看答案
