In the following members, which one can be treated as axially loaded member? （）
A. frame beam
B. shear wall
C. member in steel truss
D. frame column
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Q 235B is the ( ).
A. carbon structural steel
B. low alloy structural steel
C. cast steel
D. forged steel
Which of the following are characteristics of the steel structure?
A. High strength and low weight
B. Good plasticity and toughness
C. easy to manufacture and construct
D. Weak corrosion resistance
The steel structure is suitable for which of the following ( ).
A. Bridges
B. High-rise buildings
C. Spatial structures
D. Pressure vessels
Which of the following countries was the first to use iron structures in the world?
America
B. China
C. British
D. Egypt
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