以下结构形式侧向刚度最低的是？
A: Rigid frame system
B: Mega column
C: Tube systems
A: Rigid frame system
B: Mega column
C: Tube systems
举一反三
- 鸟巢体育馆的基本结构形式是？ A: Bents B: Portal frame C: Bundled tube
- What are the infrastructure systems? A: skeletal systems B: muscular systems C: cardiovascular system D: nervous system E: lymphatic system
- Which of the following systems belongs to the Body Axes Systems? A: Inertia Axes System B: Earth-fixed Axes System C: Body Axes System D: Navigational Axes System E: Stability Axes system F: Wind Axes system
- The followings are used in the GMDSS except _________. A: the Inmarsat system B: VHF， MF and HF DSC systems C: the Cospas-Sarsat system D: AIS systems
- The structure shown is a _____. 下面的结构属于什么类型的结构？[img=737x157]17de916257253c9.png[/img] A: truss 桁架 B: rigid frame 刚架 C: beam 梁 D: composite structure 复合结构