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Amy: Hello, Mum. 1．
Mum: Yes. I went to the supermarket with your father.
Amy: What did you buy?
Mum: 2．
Amy: Did you buy any apples?
Mum: 3．
Amy: Did you buy any bananas?
Mum: 4．
Amy: 5．
Mum: We bought ten bananas.
Amy: Thanks, Mum. I like bananas.
| A．We bought some fruit. |
| B．Did you go to the supermarket yesterday? |
| C．How many bananas did you buy? |
| D．No, we didn’t. |
| E．Yes, we did. |
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
