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I have a new bedroom. It’s not big, but it’s very clean. There is a desk in front of the window. It’s brown. There is a lamp on the desk. It’s yellow. There is a toy car on the desk too. It’s pink. There is a bookcase beside my desk. It’s brown too. There are many books in it. There is a piano in my bedroom. It’s new. It’s black. I can play the piano well.
1．My bedroom is small and clean.2．I have a brown desk. It’s new.
3．I can play the piano well.
4．There are many books on the desk.
5．I have a lamp. It’s yellow.
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
