暗示治疗最有效的适应证是()
A.精神病
B.心身障碍
C.癔病
D.情绪障碍
E.性变态
参考答案:C
Mr Brown is a(n) _____ secretary in our office, for he is able to do tasks successfully, without wasting time and energy.
A.effective
B.efficient
C.flexible
D.sufficient
轴类零件如果采用顶尖定位装夹,热处理后需要研磨中心孔。()