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Hello, my name is Mary. Welcome to our school. This is my new classroom. It’s big and clean. The wall is white. Some pictures are on the wall. You can see two fan and four lights. The board is big and black. They are my new desks and chairs. My desk is near the doo. The computer is on our teacher’s desk..
( )1. Mary’s new classroom is small and clean.
( )2. We have a computer in our classroom.
( )3. We can see four lights in the classroom.
( )4. The wall is blue.
( )5. Mary’s desk and chair are near the door.
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
