人力推磨时操作拉磨尾绳人员注意什么？
参考答案：
拉磨尾绳不应少于2人，应站在锚桩后面，且不准在绳圈内。绞磨受力时，不准用松尾绳的方法卸荷。
M: Excuse me, I am looking for the textbook by Professor Jordon for the marketing course.W: I am afraid it’s out of stock. You’ll have to order it. And it will take the publisher 3 weeks to send it to us.Q: Where did this conversation most probably take place()
A. At a publishing house.
B. At a bookstore.
C. In a reading room.
D. In Prof. Jordan’s office.
结合所学知识和原理分析材料并回答问题。一、运用所学知识分析下列命题：
