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John: Hi, Mike. We have a new classroom now.
Mike: Really? Is it big or small?
John: It’s very big and nice. The wall is white. The floor is yellow. The desks are blue. The
windows are so big.
Mike: What’s in it?
John: 33 desks, 32chairs and 6 lights.
1．Mike and John have a new classroom now.
2．The classroom is very big.
3．The wall is white.
4．The floor is blue.
5．There are (有) 32 desks and 6 lights.
同类型试题
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
