Mrs Wang:
Mingming: Can you help me?
Mrs Wang:
Mingming: A boy left this water bottle in the library. He’s in your class.
Mrs Wang: What does he look like?
Mingming:
Mrs Wang: Is he tall?
Mingming:
Mrs Wang: OK. I see. He’s Bob.
Mingming: You’re welcome.
A.Sure. |
B.Good morning, Mingming. |
C.No, he’s short. |
D.Thank you! |
E.He has big eyes and he’s wearing a green T-shirt. |
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