听下面一段对话,完成第1小题。
A. It’s on the first floor. B. It’s on the second floor. C. It’s next to the art room.
听下面一段独白,完成第2-3小题。
A. It’s Sarah’s. B. It’s Mike’s. C. It’s Sarah’s sister’s.
A. 50 yuan. B. 89 yuan. C. 150 yuan.
听下面一段对话,完成第4-5小题。
A. It is six thirty. B. It is nine o’clock. C. It is twelve forty.
A. It’s warm and sunny. B. It’s cool and rainy. C. It’s cold and snowy.
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