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This is my classroom. There is a blackboard, forty desks and chairs. The wall is blue. The floor is brown. There is a computer on the teacher’s desk. I have many classmates. Chen Jie is my best friend. She is a cute girl. She is tall and thin, and she has two big eyes. She is quiet.
1．The wall is ________. ( )| A．white | B．brown | C．blue |
| A．book | B．computer | C．TV |
| A．best | B．big | C．thin |
| A．eyes | B．classmates | C．friends |
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
