logo - 刷刷题
下载APP
【简答题】

Heard about company from: __

举报
参考答案:
参考解析:
.
刷刷题刷刷变学霸
举一反三

【单选题】韧性材料应变硬化后卸载再加载直至破坏,请判断以下结论哪一个是正确的?

A.
屈服应力提高,弹性模量降低
B.
屈服应力提高,韧性降低
C.
屈服应力不变,弹性模量不变
D.
屈服应力不变,韧性不变

【多选题】Corresponding auxiliary landing measures could use during landing process of airplane are: ____.

A.
Open the drag parachutes
B.
Open the air brake
C.
Using arrester hook
D.
Using thrust reverser