During the construction of high buildings, cranes (起重机) are used to ________ building materials to the upper floors.
A: toss
B: increase
C: hoist
D: enhance
A: toss
B: increase
C: hoist
D: enhance
举一反三
- During the construction of high buildings, cranes (起重机) are used to ________ building materials to the upper floors.
- During the construction of skyscrapers, cranes are used to lift building materials to the upper class. A: toss B: tow C: hoist D: hurl
- Which could explain why ancients buildings in China and the West used different construction materials?( ). A: Philosophical reasons. B: Political reasons. C: Geographical reasons. D: Functional reasons.
- The adoption of structural steel and reinforced concrete caused major changes in traditional construction practices. Which one is the wrong description about reinforced concrete? A: build more solid structures B: much simpler to build fire-resistant floors C: increase the cost of construction D: become possible to erect buildings with greater heights and longer spans
- What building material made high buildings possible in Chicago?