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Simon’s grandma: She is at the supermarket.
Simon: Am I going to a birthday party?
Simon’s grandma: Yes, you are!
Simon’s mum:
Simon: Sorry, I can’t. I’m on the phone.
Daming: I can help you. I can carry this box.
Simon’s mum:
Simon’s grandma:
Simon’s mum: I bought a cake, some balloons and some apples.
| A．Be careful |
| B．Thank you |
| C．Who can help me? |
| D．Where is my mother? |
| E．What did you buy? |
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
