Yang Ling: It’s four thirty. It’s time to go home.
Liu Tao: It’s raining (下雨). Where is my umbrella?
Yang Ling: Look! There’s a red umbrella under the desk.
Liu Tao: That isn’t my umbrella.
Yang Ling: There are four umbrellas near the blackboard. Which one is yours (你的), Liu Tao?
Liu Tao: The blue one. Thank you, Yang Ling.
Yang Ling: Shall we go home together?
Liu Tao: Great! Let’s go.
1.What time is it now? ( )
A.Four. | B.Four thirty. | C.Five. |
A.In the classroom. | B.In the playground. | C.In the supermarket. |
A.Yes, it is. | B.Yes, there is. | C.No, there isn’t. |
A.There are four. | B.There are five. | C.There are six. |
A.Red. | B.Black. | C.Blue. |
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