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B: Hello, Jim.
A: Where are my pants, Sherry?
B: They are under your bed.
A: But I can’t see them.
B: Can you see the red box? They are in it.
A: Thank you. And where is my jacket?
B: It’s in the white box.
A: Open the white box for me, please.
B: Look, I’m busy.
A: Oh, I’m sorry.
B: Please do it yourself.
A: OK. I will do it myself. Thank you.
1．The
2．The
3．The red box is
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
