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Bai Ling: A boy or girl?
John: A boy. 2．
Bai Ling: Wow! He is very tall.
John: 3．
Bai Ling: 4．
John: His name is Tom.
Bai Ling: Is he from the UK?
John: 5．
| A．Yes, he is. |
| B．I have a new friend. |
| C．What's his name? |
| D．Look! This is his photo (照片). |
| E．And he has short hair and a small nose. |
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
