听第一段对话,回答第1、2小题。
A. Beijing. B. Kunming. C. Shanghai.
A. It’s in the southwest of China. B. It’s in the northeast of China. C. It’s in the west of China.
听第二段对话,回答第3、4小题。
A. Maths. B. Art. C. Science.
A. Yes, it was. B. No, it wasn’t. C. We don’t know.
听第三段对话,回答第5小题。
A. He will visit his grandpa. B. He will play with his dog. C. He will go to the other city.
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