弯曲刚开始，凸凹模与工件呈三点接触，这时的弯曲变形过程称（）弯曲阶段。
A.自由
B.接触
C.矫正
D.初压
参考答案：A
职业道德，它是人们在从事职业的过程中形成的一种内在的、非强制性的约束机制。
He_______ in this city since his family moved to Nanchong.
A. live B. lived C. has lived
