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Lily: Oh no, my bag is heavy!
Jack:
Lily: Two notebooks and ten storybooks.
Jack:
Lily: Yes. They’re my friend’s storybooks.
Jack: Who’s your friend?
Lily: He’s a boy.
Jack:
Lily: His name is Tim.
Jack:
Lily: Yes. He’s tall and thin.
Jack:
Lily: Thanks.
| A．What’s in it? |
| B．Let me help you. |
| C．Ten storybooks? |
| D．What’s his name? |
| E．Is he tall? |
| F．A boy or girl? |
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
