单轴对称截面的轴心受压构件,当构件绕对称轴失稳时发生()屈曲
参考答案:弯扭
—Your food is very delicious!
—_______.
A.Don’t mention it
B.I’m sorry to hear that
C.You’re kidding
D.I’m glad to hear that
棉花的产品器官是()。水稻的产品器官是()。