---Would you like something to drink?---___________.
A. I want some chicken
B. A cup of tea, please
C. A tea, please
D. I want to buy some bananas
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---What's on your shopping list ?---______________.
A. I want buy a dress
B. I want to buy a skirt.
C. I want buying a pair of shoes
D. I bought two pens
下列指令中属于复合形状固定循环指令的是（）
A.G92
B.G71
C.G90
D.G32
车削中心与数控车床的主要区别是（）
A. 刀库的刀具数多少
B. 有动力刀具和C轴
C. 机床精度的高低
主轴表面恒线速度控制指令为（）
A.G97
B.G96
C.G95
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