外圆磨削的轴向进给量是（）
A.砂轮的移动
B.工件的移动
C.砂轮和工件同时移动
参考答案：C
John applied for the post of Eliot's secretary. Does he __________ the necessary patience and ability
to do the job well?[ ]
A. perform
B. possess
C. observe
D. support
专门档案
