A: What can I do for you?
B: I’d like some pears. How much are they?
A: They are five yuan.
B: What’s this?
A: It’s an umbrella.
B: How beautiful! How much is it?
A: It’s seventeen yuan.
B: OK! I’d like the pears and the umbrella.
A: They are twenty-two yuan.
B: Here’s the money.
A: Here’s your change.
B: Thank you.
( ) 1. The pears are fifteen yuan.
( ) 2. The umbrella is very beautiful.
( ) 3. The umbrella is seventeen yuan.
( ) 4. The pears and the umbrella are twenty yuan altogether.
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