液压机构高压密封圈损坏及放油阀没有关闭，都会使液压机构的油泵_爱下问搜题

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问题判断题

液压机构高压密封圈损坏及放油阀没有关闭，都会使液压机构的油泵打不上压

答案

参考答案：对

补全对话，情景问答

从方框中选择恰当的句子完成对话。

A. What does your mother do?
B. What do you want to be?
C. What does your mother do?
D. Because it's boring.
E. What about you?
F. No, I don't.
G. Because it's kind of dangerous.

A: Mary, (1) ______
B: She is a shop assistant.
A: Do you want to be a shop assistant?
B: (2) ______
A: Why don't you want to be a shop assistant?
B: (3) ______
A: Then (4) _______
B: I want to be a policewoman.
A: A policewoman? Why?
B: (5) ______ What about you, Jim?
A: Oh, I want to be a teacher because I love school and l love students.

问答题简答题

取料工作程序有哪些？