搜索
（_________）1.
A. ---Hello, I’m Su Hai.
---Hi, Su Hai.
B. --Hello, I’m Su Hai.
--Hello, I’m Wang Bing.
（_________）2.
A. Is this a teddy? No.
B. Is this a teddy? Yes.
（_________）3.
A. Good morning, Yang Ling.
B. Good afternoon, Yang Ling.
（_________）4.
A. This is a teddy.
B. This is a teddy bag.
（_________）5.
A. Good morning.
B. Good night.
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
