_________ is a typical substructure. It consists of column, iron plate, steel beams and concrete pad.( )
A: Pile
B: Aerodynamic resistance
C: Spread Footing
D: Narrowed foundation
A: Pile
B: Aerodynamic resistance
C: Spread Footing
D: Narrowed foundation
举一反三
- Which of the following is a steel structure building? (There is only one correct answer to this question) A: The building, beams and columns are reinforced concrete, the roof and walls are profiled steel plate B: The building, beams and columns are hot rolled steel, walls are masonry block C: The building, beams and columns are timber, walls are masonry block D: The building, beams and columns are bamboo, walls are masonry block
- Compared with plane concrete beams, reinforced concrete beams have much higher cracking resistance(抗裂能力).
- A typical photovoltaic cell consists of semiconductor material (usually iron oxide) having a PN junction.
- Compared with plain concrete beams, the ability of reinforced concrete beams to resist cracking is A: improved a little B: improved a lot C: totally the same D: None of the above
- Iron and steel are flexible. But they are not as flexible ______ rubber. A) as C) to B) for D) by A: Iron and steel are flexible. But they are not as flexible ______ rubber. B: as C: for D: to E: by