Floors aboard ship are（）.

Wallcoverings and floors should ___________ steam and splashes

For the two adjacent floors, call the upper layer ______ and the lower layer______ .

Cleanliness of the rooms, floors, lobbies, and shared spaces of the hotels can make or break someone’s experience.

中国大学MOOC: According to safety experts, it is advisable to accommodate yourself on ground floors so as to escape quickly in case of a fire.

Floors and walls must be specially constructed to make a building soundproof. A: solid and sturdy B: officially complete C: impermeable to noise. D: architecturally attractive

What is the spray used for（） A: To protect the boots from water. B: To protect the soles from heat. C: To protect the floors from soles. D: To protect the boots from rubber.

Cast-in-place reinforced concrete floors can be classified into various types according to the stress and transmission conditions, but not including ( ). A: slab floor B: beam slab floor C: cast-in-place floor slab D: beamless floor

I look, and I see white everywhere. White walls, white floors and a lot of white people. Teachers do not know I have no idea of anything they are talking about. I do not want to listen to anyone, especially the teachers.

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