What does Miss Gao do A: Fourteen floors. B: Fifteen floors. C: Sixteen floors.

Floors aboard ship are（）.

3 Hector likes to mop floors.

Wallcoverings and floors should ___________ steam and splashes

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

During the construction of high buildings, cranes (起重机) are used to ________ building materials to the upper floors.

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

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

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