角焊缝的计算假定是什么？角焊缝有哪些主要构造要求？
参考答案：
答：角焊缝的计算假定是：①破坏沿有效载面；②破坏面上应力均匀分布。
---Sorry, I can't watch TV about Olympics with you.I have to prepare well enough for the exam.
---____! We can watch TV about Olympics together tomorrow.
A．Don't say so
B．Congratulations
C．Good luck
D．No problem
