题目内容

4.2 What is the relationship of the Burgers vetor and the edge dislocation line?

A. Parallel
B. Perpendicular

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4.3What is the relationship of the Burgers vector and the screw dislocation line?

A. Parallel
B. Perpendicular

4.4 Which two choices are the diffusion mechanisms?

A. vacancy diffusion
B. self-diffusion
C. interdiffusion
D. Interstitial Diffusion

4.5 Diffusion between copper and nickel is a self-diffusion.

A. 对
B. 错

()是职业生涯中关键的一环，是个人的素质和愿望与社会需要相遇、碰撞和获得承认的时期。

A. 职业准备期
B. 职业选择期
C. 职业适应期
D. 职业稳定期