正义
参考答案:
解释经传而得义之正者称为“正义”,“注”、“说”有时也可称为“正义”。如唐代孔颖达编撰的《五经正义》。
根据实际情况回答下面的问题。
1. What does your father do?
He is a .
2. How does he go to work?
He goes to work by .
3. What's the capital of China? .
4. Which country is east of China? .
5. What do they speak in Australia? .
如下图所示,AC为钢杆[δ],=40MPa,A1=14cm2,BC为木杆,[δ]2=10MPa,A2=100cm2,AC长为2m,A、B、C连接处均可视为铰接,从强度方面计算竖向荷载F的最大许用值为()。
A.59kN
B.32.3kN
C.88.3kN
D.26.3kN