切削加工是用切削工具，把坯料或工件上多余的材料层切去，使工件获得规定的（ ）的加工方法。
A. 几何形状
B. 加工精度
C. 尺寸
D. 表面质量
查看答案
按材料切除率和加工精度，切削加工可分为（ ）。
A. 粗加工
B. 半精加工
C. 精加工
D. 精整加工
E. 修饰加工
F. 超精密加工
认为追求理性就是教育的最高目的是（ ）的观点。
A. 苏格拉底
B. 亚里士多德
C. 柏拉图
D. 威廉·冯·洪堡
Questions land 2 are based on the news report you have just heard.
A. Many facilities were destroyed by a wandering cow.
B. A wandering cow knocked down one of its fences.
C. Some tourists were injured by a wandering cow.
D. A wandering cow was captured by the police.
Questions land 2 are based on the news report you have just heard.
A. It was shot to death by a police officer.
B. It found itswayback to the park's zoo.
C. It became a great attraction for tourists.
D. It was sent to the animal control department.
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