What is the biggest shock in the writer's career？
A. She lost her job as a field systems analyst in 1920s.
B. She lost her grandmother who was her inspiration.
C. She was denied the post of first manager on account of sexual discrimination.
D. She quit after being totally blown away and crawled back home.
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图中所示结构1杆轴力为()。
A. 拉力
B. 压力
C. 0
D. Fp
图中所示的超静定刚架结构，CD杆的内力情况为()。
A. 有弯矩、有剪力、有轴力
B. 无弯矩、无剪力、无轴力
C. 有弯矩、有剪力、无轴力
D. 无弯矩、无剪力、有轴力
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