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Daming: Here is the present for you.
Simon: Wow!
Daming:
Simon: I like it so much. Daming, did you make it yourself?
Daming: Yes, I did.
Simon: You’re so great.
Daming: First, I painted a dragon on a piece of paper.
Simon: I want to make a bird kite.
Daming: Of course, I will. You can take it to your school tomorrow.
| A．Then I cut the paper with scissors. |
| B．It’s a beautiful Chinese kite! |
| C．Will you help me? |
| D．It’s a Chinese dragon. |
| E．How did you make it? |
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
