题目内容

How many people will attend the dinner at last?

A. 4
B. 5
C. 6

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Where will the table be now?

A. By the door
B. Close to the kitchen
C. In the corner

What time is the new booking?

A. 6.00
B. 7.30
C. 8.00

型材弯曲机产品主要用途有____。

A. 汽车
B. 电梯
C. 石油
D. 化工

拉弯成形中可能会出现的成形缺陷主要有____。

A. 壁厚减薄
B. 起皱
C. 截面畸变
D. 破裂

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