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问题 单项选择题

图中结构A截面的转角（顺时针为正）为（）。

A．40/EI

B．20/EI

C．-20/EI

D．26.67/EI

答案

参考答案：B

解析：

荷载产生的弯矩图为三角形(杆件下侧受拉)，虚拟单位力产生的弯矩图为矩形，即A截面转角为顺时针(值为20/EI)，故正确答案选择(B)。

改错题

下列短文的划线部分是错误的。

Confucius was born in the state of Lu in the year of 551 B.C. When he is 3 years old, his father died. And when he was 17, his mother died. And Confucius received a good education when he was young. In his thirty, Confucius began to teach. He spent the rest of his life teaching. In the age of 55, Confucius begins to travel around China. He tried to search for good rule of behavior. When Confucius was 68 years old, he returned back to Lu, his home state. He wrote lots of books after he came back. Five years after, he passed away. Although he has been died for several thousand years, we can still remember he forever.
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多项选择题

培育先进的文化价值理念，就是要通过以情喻理的正面教育，在加油站员工中营造“比学赶帮超”的良好氛围，让员工在（）过程中共铸企业文化.实现共同理想。

A.自我教育

B.自我激励

C.自我约束

D.自我完善
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