微动腐蚀
参考答案：
两个相互接名义上相对静止而实际上处于周期性小幅相对滑动的固体表面因摩损与腐蚀交互作用所导致的材料表面破坏现象。
What a(n)_________ it is that they were born in the same year and on the same day! [ ]
A. coincidence
B. accident
C. incident
D. confidence
慢性肾小球肾炎的主要发病机理是
A．链球菌感染
B．病毒感染
C．感染后免疫损害
D．霉菌感染
E．健存肾单位代偿性高负荷
