听第一段录音,回答1~2题。
A. It’s on the chair. B. It’s under the desk. C. It’s behind the door.
A. Yes, it is. B. No, it isn’t. C. Yes, they are.
听第二段录音,回答3~5题。
A. In the classroom. B. In the shop. C. At home.
A. A red schoolbag. B. A pink schoolbag. C. A white schoolbag.
A. Twenty yuan. B. Forty yuan. C. Thirty yuan.

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

