(判断题)25: 图114所示,结构支座B上升δ,其M图如图b所示 A: 错误 B: 正确 ...
(单选题)16: 图118中,结构体系的弹簧刚度为k,梁的质量不计,EI=∞,则体系的自振频率ω等于() A: A B: B C: C D: D ...
(单选题)15: 图83刚架,EI=常数,B点的竖向位移(↓)为() A: A B: B C: C D: D ...
(单选题)8: 图41结构各杆温度均升t℃,且已知EI和EA均为常数,线膨胀系数为α,则点D的竖向位移ΔDV为() A: A B: B C: C D: D ...
(单选题)5: Mr图必须包住 M图,才能保证梁的( ) A: 正截面抗弯承载力 B: 斜截面抗弯承载力 C: 斜截面抗剪承载力 D: 正、斜截面抗弯承载力。 ...
(单选题)17: ——Did your classmate accept your invitation? ——No, he ____ refused. A: as far as &n...
(单选题)18: ____ the search engine just gave me some brief introductions rather than the whole content of the book to read. A: Luckily&nbs...
(单选题)2: ——You didn't invite Mary to the ball? ____ her, too? A: Must I invite ...
(单选题)14: By the time you arrive home, I ____, so please don't make any noise when you come in. A: shall have been sleeping &n...
(单选题)1: ____ the search engine just gave me some brief introductions rather than the whole content of the book to read. A: Luckily ...