Lanlan: I'm going to Kunming.
Mum: Have you got a bag?
Lanlan: Yes, I have.
Mum: OK. I'll buy you a new one. At the department store...
Mum:
Lanlan: It's green.
Mum: Look at this green one. It has got two pockets.
Lanlan: Yes, it is. But it's too big for me.
Mum: What about this one?
Lanlan: Great!
to carry.
Mum: It's nice.
Sales assistant: It's forty yuan.
Mum: We'll take it.
A.What's your favourite colour? |
B.It has got four wheels. |
C.But it's broken. |
D.How much is it? |
E.Where are you going? |
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