题目内容
（请给出正确答案）
[主观题]
对于淬硬齿轮齿面，为了获得较高的齿形精度，纠正热处理产生的变形，通常对齿轮进行（）加工。 For qu
enched gear, gear is usually machined by () in order to obtain the higher tooth shape accuracy and correct the deformation caused by the heat treatment
A、grinding
B、shaping
C、hobbing
D、slotting
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