听下面一段对话,回答第1~3小题。
A. Yes, he looks happy. B. No, he looks sad. C. We don't know.
A. He's tired. B. He's hungry. C. Both A and B.
A. He would like a cake. B. He would like a pie. C. He would like a hamburger.
听下面一段对话,回答第4~5小题
A. He feels tired. B. He feels thirsty. C. He feels hungry.
A. He's at school. B. He's at home. C. He's in the library.

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

