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Lisa: School is over. Let’s go home.
Annie:
Lisa: Look! A kite!
Annie:
Lisa: It’s in the tree.
Annie:
Lisa: I don’t know. Maybe it’s the little girl’s.
Annie:
Little girl: Yes, it is. But I can’t get it. Can you help me?
Annie: Sure.
Little girl: Thank you very much.
Mom:
| A．Is this your kite? |
| B．You’re welcome. |
| C．Where is it? |
| D．Whose kite is it? |
| E．OK. Let’s go. |
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
